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Sennheiser HD 4 40 BT Review | 93 Data compared

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  • Avg. price in UK: ~£130
  • Avg. price in US: ~$150
  • Form factor: over-ear
  • Connectivity: wireless
  • Battery life: 25 hours
  • Active noise cancellation (ANC): no

Sennheiser HD 4 40 BT review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

5.7

Overall score

What it is: An overall evaluation of the headphones' quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best headphones on the market.

Score components:

80.0%

4.8

Technical Score

20.0%

9.3

User score

Good
4.8

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

4.6

Sound

20.0%

4.2

Features

10.0%

7.2

Design

8.0%

3.2

Connectivity

6.0%

5.8

Battery

4.0%

5.6

Calls & Controls

Poor
9.3

User score

What it is: A rating that combines user reviews and the total number of reviews received by the headphones.

When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.

Score components:

70.0%

9.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.5
(9085)
United States
Amazon_logo.png
4.5
(9085)

(Reviews last updated: June 2026)

Exceptional
  • 6.8
    Gaming

    Score components:

    35.0%

    5.2

    Audio latency

    25.0%

    10

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    1.0

    Noise-canceling microphone

    8.0%

    3.9

    Battery life

  • 2.3
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    3.9

    Battery life

    18.0%

    5.0

    Weight

    16.0%

    1.0

    Multipoint support

    14.0%

    0.0

    Ambient sound mode

  • 3.6
    Calls

    Score components:

    28.0%

    1.0

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    1.0

    Multipoint support

    16.0%

    3.9

    Battery life

    14.0%

    1.0

    Companion app

  • 4.3
    Workout

    Score components:

    28.0%

    5.0

    Weight

    24.0%

    1.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    3.9

    Battery life

    12.0%

    10

    Can be used as a headset

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Best prices in UK

Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Sennheiser HD 4.40 BT is a closed-back, over-ear wireless headset featuring 32mm dynamic drivers, an 18 Hz to 22 kHz frequency response, and an 18-ohm impedance. Key characteristics include Bluetooth 4.0 connectivity with aptX support for high-fidelity audio, NFC for quick pairing, and a dual omnidirectional microphone system for clear calls. Its primary pros are a long-lasting battery life of up to 25 hours, a lightweight foldable design (225g), and a warm sound profile with deep, powerful bass. However, notable cons include small earpad openings that may cause discomfort for users with larger ears, a lack of active noise cancellation (ANC), and a headband with minimal padding that can feel stiff during extended use.

Technical Specifications of Sennheiser HD 4 40 BT

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

4.6

Sound

20.0%

4.2

Features

10.0%

7.2

Design

8.0%

3.2

Connectivity

6.0%

5.8

Battery

4.0%

5.6

Calls & Controls

4.8
Sennheiser HD 4 40 BT has a technical score of 4.81 points, which is lower than that of 54.4% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the headphones.

When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.

Score components:

70.0%

9.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.5
(9085)
United States
Amazon_logo.png
4.5
(9085)

(Reviews last updated: June 2026)

9.3
Sennheiser HD 4 40 BT has a user score of 9.3 points, which is higher than that of 95.9% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the headphones.
When it matters: When you prefer headphones that have already been chosen and reviewed by many other users.
10
Sennheiser HD 4 40 BT has a popularity of 10 points, which is higher than 71.9% of products in this category.
Ratio quality/price

What it is: An indicator that combines the headphones' overall rating with their cost.

When it matters: When you are looking for headphones that offer a strong balance of performance, features, and price.

Score components:

60.0%

5.7

Overall score

40.0%

9.8

Price

7.0
Sennheiser HD 4 40 BT has a quality-to-price ratio of 7 points, which is higher than 61.2% of products in this category.
Active noise cancellation (ANC)
What it is: Reduces background noise using active technology
When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

no
Sennheiser HD 4 40 BT does not support active noise cancellation. 27.4% of headphones support active noise cancellation.
Driver type
What it is: Type of speaker driver technology used
When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

dynamic
Driver size
What it is: Diameter of the speaker driver unit
When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

32 mm
Sennheiser HD 4 40 BT uses a driver size of 32 mm, smaller driver size than 74.5% of headphones and equal to 3% of headphones.
Number of drivers
What it is: Total number of speaker drivers per earcup
When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

1
Sennheiser HD 4 40 BT uses 1 drivers, equal to 96% of headphones.
Lowest frequency
What it is: Lowest audio frequency the headphones can reproduce
When it matters: When deeper bass extension matters for your music or movie listening.

Importance: MEDIUM

Good value: <=10 Hz

18 Hz
Sennheiser HD 4 40 BT reaches a lowest frequency of 18 Hz, lower lowest frequency than 49.8% of headphones and equal to 3.5% of headphones.
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Noise-canceling microphone
What it is: Built-in microphone reduces background noise during calls
When it matters: When you take calls in busy spaces and want your voice to stay clearer.

Importance: MEDIUM

no
Sennheiser HD 4 40 BT does not support a noise-canceling microphone. 45.6% of headphones support noise-canceling microphones.
Can be used as a headset
What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.
When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

Importance: MEDIUM

yes
Sennheiser HD 4 40 BT is headset-ready, 84.7% is not. 15.3% of headphones can be used as headsets.
Number of microphones
What it is: Total number of built-in microphones
When it matters: When call pickup quality and beamforming support matter to you.

Importance: LOW

Good value: >=2

2
Sennheiser HD 4 40 BT has 2 microphones, more microphones than 78.2% of headphones and equal to 8.8% of headphones.
Boom microphone
What it is: Includes detachable boom microphone for voice clarity
When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

Importance: LOW

no
Sennheiser HD 4 40 BT does not include a boom microphone. 15.6% of headphones have a boom microphone.
Microphone SNR
What it is: Signal-to-noise ratio of the microphone
When it matters: When call clarity matters and you want your voice picked up more cleanly instead of buried in background hiss.

Importance: LOW

Good value: >80 dB

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Connectivity
What it is: Available connection methods (wired, wireless, Bluetooth, etc.)
When it matters: When the headphones need to match how you listen across wired and wireless devices.

Importance: HIGH

wireless
Sennheiser HD 4 40 BT supports wireless connectivity, more flexible connectivity than 52.6% of headphones and equal to 47.4% of headphones.
supports both wireless and wired connectivity.
Bluetooth version
What it is: Version of Bluetooth technology supported
When it matters: When wireless stability, efficiency, and feature support matter more than treating Bluetooth as a box-check spec.

Importance: MEDIUM

Good value: >=5.0

4.0
Sennheiser HD 4 40 BT uses Bluetooth version 4.0, newer Bluetooth version than 57.4% of headphones and equal to 4.8% of headphones.
Maximum Bluetooth range
What it is: Maximum wireless operating distance from source device
When it matters: When you move around rooms and want fewer dropouts from your source device.

Importance: LOW

Good value: >=10 m

10 m
Sennheiser HD 4 40 BT offers a Bluetooth range of 10 m, higher Bluetooth range than 2.6% of headphones and equal to 79.9% of headphones.
Audio latency
What it is: Delay between audio and video in wireless mode
When it matters: When you watch video or play games and need sound to stay in sync.

Importance: HIGH

Good value: <60 ms

151 ms
Sennheiser HD 4 40 BT has audio latency of 151 ms, higher audio latency than 57.3% of headphones.
Multipoint support
What it is: Supports simultaneous connections to multiple devices
When it matters: When you switch often between a phone and a laptop during the day.

Importance: MEDIUM

no
Sennheiser HD 4 40 BT does not support multipoint. 65.1% of headphones support multipoint.
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Ambient sound mode
What it is: Allows external sounds to pass through for awareness
When it matters: When you need to stay aware of traffic, voices, or announcements.

Importance: MEDIUM

N/A
EQ support
What it is: Allows customization of sound profile via equalizer
When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

Importance: MEDIUM

yes
Sennheiser HD 4 40 BT supports EQ customization. 76.8% of headphones support EQ.
Companion app
What it is: Dedicated mobile app for customization and updates
When it matters: When software customization, updates, and extra controls matter.

Importance: MEDIUM

no
Sennheiser HD 4 40 BT does not work with a companion app. 44.4% of headphones support companion apps.
Adjustable ANC levels
What it is: Allows adjustment of noise cancellation intensity levels
When it matters: When you move between quiet rooms, offices, streets, and public transport and do not want one ANC setting for every situation.

Importance: LOW

Good value: >=4

N/A
Voice assistant support
What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
When it matters: When hands-free control is part of your daily routine.

Importance: LOW

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Battery life
What it is: Playback time on a single charge
When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

Importance: HIGH

Good value: >45 hours

25 hours
Sennheiser HD 4 40 BT offers battery life of 25 hours, lower battery life than 55.7% of headphones and equal to 3.2% of headphones.
Battery life with ANC
What it is: Playback time with active noise cancellation enabled
When it matters: When you plan to keep noise cancellation on for most of the day.

Importance: HIGH

Good value: >40 hours

N/A
Charging time
What it is: Time required for a full battery charge
When it matters: When you often need the headphones ready again after short breaks.

Importance: MEDIUM

Good value: <=2 hours

2 hours
Sennheiser HD 4 40 BT needs 2 hours to charge, lower charging time than 48.5% of headphones and equal to 39.1% of headphones.
Quick charge
What it is: Provides quick playback time with short charging period
When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

no
Sennheiser HD 4 40 BT does not support quick charging. 69.1% of headphones support quick charge.
Battery capacity
What it is: Total energy storage of the internal battery
When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

600 mAh
Sennheiser HD 4 40 BT has a battery capacity of 600 mAh, higher battery capacity than 49.2% of headphones and equal to 7.7% of headphones.
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Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Sennheiser
Form factor
What it is: Overall design type of the headphones (over-ear, on-ear, in-ear, etc.)
When it matters: When comfort, portability, and isolation depend on the overall headphone style.

Importance: HIGH

over-ear
Weight
What it is: Total weight of the headphones
When it matters: When long listening sessions make wearing comfort more important.

Importance: MEDIUM

Good value: <150 g

225 g
Sennheiser HD 4 40 BT weighs 225 g, heavier than 52.2% of headphones and equal to 0.6% of headphones.
Acoustic design
What it is: Type of acoustic design (open-back, closed-back, semi-open)
When it matters: When you need the right balance of isolation, leakage, and soundstage.

Importance: HIGH

closed-back
Clamp force
What it is: Amount of clamping pressure applied to the head
When it matters: When comfort and fit security matter during long sessions.

Importance: MEDIUM

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Sennheiser HD 4 40 BT vs the average headphone

  • EQ customization
    Sennheiser HD 4 40 BT supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
    What it is: Allows customization of sound profile via equalizer
    When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

    Importance: MEDIUM

    Sennheiser HD 4 40 BT supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
  • 11 dB/mW higher sensitivity
    Sennheiser HD 4 40 BT has a higher sensitivity than the average headphone (113 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    What it is: Sound pressure output level per unit of input power
    When it matters: When you plan to use weaker sources like phones, handhelds, or entry-level dongles and still want enough volume.

    Importance: MEDIUM

    Good value: >=106 dB/mW

    Sennheiser HD 4 40 BT has a higher sensitivity than the average headphone (113 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.113 dB/mW vs 102 dB/mW
  • More flexible connectivity
    Sennheiser HD 4 40 BT offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
    supports both wireless and wired connectivity.
    What it is: Available connection methods (wired, wireless, Bluetooth, etc.)
    When it matters: When the headphones need to match how you listen across wired and wireless devices.

    Importance: HIGH

    Sennheiser HD 4 40 BT offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
  • On-device controls
    Sennheiser HD 4 40 BT includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
    What it is: Physical controls available directly on headphones
    When it matters: When you need playback, volume, or call controls to be easy to reach without pulling out your phone.

    Importance: MEDIUM

    Sennheiser HD 4 40 BT includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • Foldable design
    Sennheiser HD 4 40 BT has a foldable design, the average headphone does not. 61% of headphones are foldable.
    What it is: Earcups or headband can fold for compact storage
    When it matters: When you travel often and want easier storage in a bag.

    Importance: LOW

    Sennheiser HD 4 40 BT has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • 1 more microphones
    Sennheiser HD 4 40 BT has more microphones than the average headphone (2 vs 1). The average headphones have 1 microphones.
    What it is: Total number of built-in microphones
    When it matters: When call pickup quality and beamforming support matter to you.

    Importance: LOW

    Good value: >=2

    Sennheiser HD 4 40 BT has more microphones than the average headphone (2 vs 1). The average headphones have 1 microphones.2 vs 1
  • Sidetone support
    Sennheiser HD 4 40 BT supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
    What it is: Lets users hear their own voice during calls
    When it matters: When long calls matter and you do not want to sound unnaturally loud in your own ears while speaking.

    Importance: LOW

    Sennheiser HD 4 40 BT supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • 16.3% higher user score
    Sennheiser HD 4 40 BT has a higher user score than the average headphone (9.30 vs 8.000).
    What it is: A rating that combines user reviews and the total number of reviews received by the headphones.
    When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
    Sennheiser HD 4 40 BT has a higher user score than the average headphone (9.30 vs 8.000).9.3 vs 8
  • Foldable design
    Sennheiser HD 4 40 BT has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • 11 dB/mW higher sensitivity
    Sennheiser HD 4 40 BT has a higher sensitivity than the average headphone (113 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 2,000 Hz higher treble extension
    Sennheiser HD 4 40 BT has a higher highest frequency than the average headphone (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
  • 10 dB SPL higher sound pressure level
    Sennheiser HD 4 40 BT has a higher sound pressure level than the average headphone (113 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • Rechargeable battery
    Sennheiser HD 4 40 BT has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
  • Play while charging
    Sennheiser HD 4 40 BT can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
  • More flexible connectivity
    Sennheiser HD 4 40 BT offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
  • On-device controls
    Sennheiser HD 4 40 BT includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • 1 more microphones
    Sennheiser HD 4 40 BT has more microphones than the average headphone (2 vs 1). The average headphones have 1 microphones.
  • Sidetone support
    Sennheiser HD 4 40 BT supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • EQ customization
    Sennheiser HD 4 40 BT supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.

Total
Overall
Design
Sound
Battery
Connectivity
Calls & Controls
Features
  • 3 mm tighter earcup height
    Sennheiser HD 4 40 BT has tighter earcup height than the average headphone (57 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
  • 8 mm smaller driver size
    Sennheiser HD 4 40 BT has smaller driver size than the average headphone (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.
  • 0.2 % higher distortion
    Sennheiser HD 4 40 BT has a higher total harmonic distortion than the average headphone (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
  • 1.03 dB looser channel balance
    Sennheiser HD 4 40 BT has a higher channel balance tolerance than the average headphone (1.5 dB vs 0.47 dB). The average headphones have channel balance tolerance of 0.47 dB.
  • 5 hours shorter battery life
    Sennheiser HD 4 40 BT has a lower battery life than the average headphone (25 hours vs 30 hours). The average headphones offer battery life of 30 hours.
  • 23.5 ms higher audio latency
    Sennheiser HD 4 40 BT has a higher audio latency than the average headphone (151 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.
  • 8 mm smaller driver size
    Sennheiser HD 4 40 BT has smaller driver size than the average headphone (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    What it is: Diameter of the speaker driver unit
    When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

    Importance: MEDIUM

    Sennheiser HD 4 40 BT has smaller driver size than the average headphone (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.32 mm vs 40 mm
  • 0.2 % higher distortion
    Sennheiser HD 4 40 BT has a higher total harmonic distortion than the average headphone (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    What it is: Percentage of harmonic distortion in audio output
    When it matters: When cleaner sound reproduction matters at louder volumes.

    Importance: LOW

    Good value: <=1%

    Sennheiser HD 4 40 BT has a higher total harmonic distortion than the average headphone (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.0.5 % vs 0.3 %
  • 23.5 ms higher audio latency
    Sennheiser HD 4 40 BT has a higher audio latency than the average headphone (151 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.
    What it is: Delay between audio and video in wireless mode
    When it matters: When you watch video or play games and need sound to stay in sync.

    Importance: HIGH

    Good value: <60 ms

    Sennheiser HD 4 40 BT has a higher audio latency than the average headphone (151 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.151 ms vs 127.5 ms
  • 3 mm tighter earcup height
    Sennheiser HD 4 40 BT has tighter earcup height than the average headphone (57 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    What it is: Internal height of the earcup cavity
    When it matters: When larger ears need enough space inside the earcups.

    Importance: MEDIUM

    Sennheiser HD 4 40 BT has tighter earcup height than the average headphone (57 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.57 mm vs 60 mm
  • 5 hours shorter battery life
    Sennheiser HD 4 40 BT has a lower battery life than the average headphone (25 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    What it is: Playback time on a single charge
    When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

    Importance: HIGH

    Good value: >45 hours

    Sennheiser HD 4 40 BT has a lower battery life than the average headphone (25 hours vs 30 hours). The average headphones offer battery life of 30 hours.25 hours vs 30 hours
  • 1.03 dB looser channel balance
    Sennheiser HD 4 40 BT has a higher channel balance tolerance than the average headphone (1.5 dB vs 0.47 dB). The average headphones have channel balance tolerance of 0.47 dB.
    What it is: Tolerance between left and right channel volume balance
    When it matters: When stereo precision and left-right consistency matter to you.

    Importance: LOW

    Good value: <=0.5 dB

    Sennheiser HD 4 40 BT has a higher channel balance tolerance than the average headphone (1.5 dB vs 0.47 dB). The average headphones have channel balance tolerance of 0.47 dB.1.5 dB vs 0.47 dB
Total
Design
Sound
Battery
Connectivity

Graphic comparison of Sennheiser HD 4 40 BT and

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Third-party reviews

United Kingdom
amazon
4.5
9085 Reviews
United States
Amazon_logo.png
4.5
9085 Reviews

(Reviews last updated: June 2026)

What customers like about Sennheiser HD 4 40 BT?

  • High-quality sound with a deep, powerful bass response that doesn't muddy the mid-range
  • Exceptional battery life, often cited as lasting between 25 to 29 hours on a single charge
  • Lightweight and durable build quality that can withstand daily use and travel
  • Reliable Bluetooth connectivity with support for aptX and quick NFC pairing
  • Includes a 3.5mm audio cable for passive wired listening when the battery is empty
  • Effective passive noise isolation due to the firm clamping force and closed-back design

What customers dislike about Sennheiser HD 4 40 BT?

  • Small ear cup openings can cause discomfort, especially for users with larger ears
  • Strong clamping force and lack of headband padding may lead to pain during long listening sessions
  • Controls on the right ear cup can be cramped and take time to master by touch
  • Ear cups do not rotate flat, making them awkward to wear around the neck
  • Uses an older micro-USB charging port and a proprietary 2.5mm jack for the wired cable
  • Lacks active noise cancellation (ANC), unlike the more expensive HD 4.50 model

Expert reviews

A
au.pcmag.com
02/12/2017
Sennheiser HD 4.40 BT Review - PCMag Australia Would you like a summary of the pros and cons mentioned in these specific reviews?

The Sennheiser HD 4.40 BT headphones earn a 4.0 "Excellent" rating and the Editors' Choice award from PCMag Australia for delivering an impressive balance of strong wireless performance and intuitive usability at a reasonable $149.95 price point. A major pro of these over-ear, closed-back headphones is their strong audio performance, featuring deep, powerful sub-bass depth that...Read more

U
uk.pcmag.com
01/12/2017
Sennheiser HD 4.40 BT Review - PCMag UK

The Sennheiser HD 4.40 BT is a pair of over-ear, closed-back wireless headphones that earned an "Excellent" 4.0 rating and an Editors' Choice award from PCMag. Priced at $149.95, they stand out for a bass-forward, rich sound signature that delivers intense sub-bass depth without distorting at top volumes, making them a fantastic value for bass lovers. The pros include strong audio...Read more

H
headphonesty.com
02/09/2021
Review: Sennheiser HD 4.40 BT Wireless - Headphonesty

The Sennheiser HD 4.40BT Wireless offers an affordable, durable design with impressive battery life, easy Bluetooth pairing, and a forgiving sound signature. However, the review highlights significant drawbacks in ergonomics, specifically the small ear cups, weak headband adjustments, and a poor-quality proprietary cable. While the build is resilient, the sound profile suffers from...Read more

D
diyaudioheaven.wordpress.com
11/07/2019
HD 4.40 BT - DIY-Audio-Heaven headphonereview.com

The Sennheiser HD 4.40 BT is a versatile closed-back headphone offering both wired and wireless Bluetooth 4.0 connectivity with AptX support. It is praised for its sturdy build quality, lightweight design (225g), and deep, "punchy" bass that suits pop music and outdoor use. The mids are forward and clear, avoiding the typical "cuppy" sound of closed-back models, while the treble...Read more

R
rtings.com
22/03/2019
Sennheiser HD 4.40 BT Wireless Headphones Review - RTINGS.com

The Sennheiser HD 4.40 BT Wireless headphonesGo are identified as decent, durable, and comfortable over-ear headphones, featuring an exceptional 29-hour battery life and very low Bluetooth latency for video consumption. They offer a portable, folding design with a companion app for EQ customization, though the sound profile is described as dark and lacking in treble detail. Major...Read more

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wired.com
21/03/2018
Sennheiser HD 4.4 BT Review: Bargain Bass - WIRED

The Sennheiser HD 4.4 BT over-ear wireless headphones offer exceptional, high-quality audio that punches far above their affordable $100 price point. The sound profile features crisp highs, clear mids, and a natural, impressive bass that enhances electronic or pop tracks without overpowering the music. In addition to stellar acoustic performance, the headphones boast an excellent...Read more

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pcmag.com
01/12/2017
Sennheiser HD 4.40 BT Review - PCMag

The PCMag review for the $149.95 Sennheiser HD 4.40 BT headphones praises their strong, bass-forward audio performance and comfortable, user-friendly design, earning them an Editors' Choice award. While offering excellent, powerful, and crisp sound, the headphones are designed for mainstream listeners rather than audiophiles seeking a flat, accurate response. Potential drawbacks...Read more

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headphonereview.com
12/09/2017
Sennheiser HD 4.40 BT Headphones Review - Headphone Review

The Sennheiser HD 4.40 BT is an affordable, lightweight pair of wireless over-ear headphones that offers impressive sound quality for its price point. Major pros include its deep, powerful low-end bass response, clean mid-range tuning, strong stereo separation, and lack of audio distortion. Additionally, they boast an excellent battery life of up to 25 hours, reliable Bluetooth...Read more

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stereophile.com
12/08/2017
Sennheiser HD 4.40 BT Affordable Over-Ear Sealed Bluetooth Headphones - Stereophile

The Stereophile review highlights the $149 Sennheiser HD 4.40 BT as a high-value, "Wall of Fame" closed-back wireless headphone, praising its "bulletproof" build, intuitive controls, -19dB noise isolation, and 25-hour battery life. Sound performance is described as warm and organic with non-fatiguing treble, with the reviewer preferring the energetic sound profile of the wireless...Read more

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majorhifi.com
22/01/2017
Sennheiser HD 4.40 BT Headphone Review - Major HiFi

The Sennheiser HD 4.40 BT is a portable, comfortable wireless headphone designed for a powerful, punchy, and subsonic bass-heavy performance that outperforms competitors in genres like hip-hop and synth tracks. While the sound signature is heavily sculpted and unsuitable for flat, accurate reference listening, it maintains commendable midrange and high-frequency presence. Major...Read more

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computerbild.de
23/01/2019
Sennheiser HD 4.40 BT Review: Highly Recommended

Sennheiser HD 4.40 BT The Sennheiser HD 4.40 BT is a highly recommended, budget-friendly Bluetooth headphone that delivers impressive audio performance for its price class. It provides a well-balanced and natural sound signature characterized by deep, clean bass and clean vocal reproduction, though it slightly lacks detail and sparkle in the highest frequencies. Designed for...Read more

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majorhifi.com
22/01/2017
Sennheiser HD 4.40 BT Headphones Review", "Sennheiser HD 4.40 BT Review

The Sennheiser HD 4.40 BT is a comfortable, streamlined wireless headphone designed for consumer-focused, fun music listening rather than flat studio referencing. A key highlight is its powerful "bass for days" profile that provides intense, punchy, and subsonic lows, while still maintaining surprisingly strong mid and high frequency responses for electronic, hip-hop, and rock...Read more

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welt.de
28/01/2018
Sennheiser HD 4.40 BT Review: How Good Are These Bluetooth Headphones?", "Sennheiser HD 4.40 BT on Test: Are These Bluetooth Headphones Any Good?

The WELT review rates the Sennheiser HD 4.40 BT as a top contender in the under-€150 price tier, awarding it a "good" test note of 2.23. Testers heavily praised its epic battery life, which clocked in at 35 hours and 23 minutes during testing by "Computer Bild". The audio performance is highly impressive for its budget, delivering deep, clean bass mixed with clear, natural vocal...Read more

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lesnumeriques.com
07/02/2018
Sennheiser HD 4.40 BT Bluetooth Headphones Review

The Sennheiser HD 4.40 BT is a lightweight (225 g), matte black wireless headphone that features a rugged and minimalist plastic construction. It delivers an overall balanced audio performance with dynamic bass and clear mid-range frequencies, though it exhibits a distinct frequency dip around 4 kHz. Key strengths highlighted in the review include comprehensive and intuitive...Read more

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son-video.com
22/06/2019
Sennheiser HD 4.40BT Wireless - Bluetooth Headphones

The Sennheiser HD 4.40BT Wireless is a closed-back, circumaural Bluetooth 4.0 headphone engineered for high-quality mobile listening with aptX and NFC pairing. It features 32mm dynamic transducers delivering a detailed frequency response from 18 Hz to 22,000 Hz, driven by a rechargeable 600 mAh lithium-polymer battery that provides up to 25 hours of playback from a 2-hour charge....Read more

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1casquebluetooth.fr
01/03/2026
Sennheiser HD 4.40 BT Headphones Review: Testing This Premium Model

Sennheiser HD 4.40 BT The Sennheiser HD 4.40 BT is a contemporary, deep matte black circum-aural wireless headphone engineered for longevity and style. It features an adaptable sound signature with an impressive acoustic pressure capacity of up to 113 decibels. It automatically balances bass and treble across genres, highlighting a powerful, dynamic bass performance. Built from...Read more

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manzanamania.wordpress.com
23/11/2018
Review: Sennheiser HD 4.40BT wireless headphones

The review from Manzana Manía praises the Sennheiser HD 4.40BT wireless headphonesGo as an affordable, high-quality audio option with impressive performance benchmarks. The author highlights several major pros, including outstanding Hi-Fi sound quality featuring balanced details and powerful dynamic bass powered by the aptX Bluetooth codec. The headphones deliver excellent comfort...Read more

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xn--audiodiqualit-1db.com
14/06/2026
Sennheiser HD 4.40 BT Review: Entry-Level Headphones!

The AudiodiQualità review positions the Sennheiser HD 4.40 BT as an excellent, budget-friendly, entry-level pair of over-ear Bluetooth headphones. Measuring 18 x 10 x 26 cm and weighing 220g, they feature a resilient black plastic body reinforced by an internal steel structure for enhanced impact resistance. Designed for dual functionality, they operate via Bluetooth and NFC, or...Read more

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socialandtech.net
31/07/2017
Sennheiser HD 4.40 BT, sound comes to life - SocialandTech

The SocialandTech review of the Sennheiser HD 4.40 BT highlights them as an excellent, well-balanced wireless option for users on the move who seek rich audio quality at a reasonable price point of €122 on Amazon. Built with robust materials and comfortable, ergonomic ear cushions, the headphones deliver a strong acoustic experience defined by a powerful, punchy, and dynamic bass...Read more

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diyaudioheaven.wordpress.com
11/07/2019
HD 4.40 BT | DIY-Audio-Heaven (Detailed Dutch measurements and analysis)

The Sennheiser HD 4.40 BT is a lightweight, closed-back wireless headphone that delivers a punchy, fun sound signature well-suited for casual outdoor listening, travel, or office use. On the positive side, it offers clear, dynamic midrange frequencies and an airy, detailed treble response that avoids typical closed-back "cuppy" acoustic limitations. Its 600mAh battery provides a...Read more

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