Sennheiser mm 450 X Travel Review | 93 Data compared

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  • Avg. price: ~£260
  • Form factor: on-ear
  • Connectivity: wireless
  • Battery life: 8 hours
  • Active noise cancellation (ANC): yes

Sennheiser mm 450 X Travel review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

6.9

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%

6.9

Technical Score

20.0%

7.2

User score

Good
6.9

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%

8.1

Sound

20.0%

3.9

Features

10.0%

8.3

Design

8.0%

6.1

Connectivity

6.0%

3.5

Battery

4.0%

8.6

Calls & Controls

Good
7.2

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%

7.8

User reviews

30.0%

5.8

Popularity

User score:
United Kingdom
amazon
3.9
(190)
United States
Amazon_logo.png
3.9
(190)

(Reviews last updated: Jun 2026)

Very good
  • 8.7
    Gaming

    Score components:

    35.0%

    9.0

    Audio latency

    25.0%

    9.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    10

    Noise-canceling microphone

    8.0%

    1.0

    Battery life

  • 7.5
    Travel

    Score components:

    28.0%

    10

    Active noise cancellation (ANC)

    24.0%

    1.0

    Battery life

    18.0%

    7.9

    Weight

    16.0%

    10

    Multipoint support

    14.0%

    10

    Ambient sound mode

  • 7.3
    Calls

    Score components:

    28.0%

    10

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    10

    Multipoint support

    16.0%

    1.0

    Battery life

    14.0%

    1.0

    Companion app

  • 4.6
    Workout

    Score components:

    28.0%

    7.9

    Weight

    24.0%

    1.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    1.0

    Battery life

    12.0%

    10

    Can be used as a headset

  • sennheiser-mm-450-x-travel
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  • sennheiser-mm-450-x-travel
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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 MM 450-X Travel is a ultra-portable, on-ear wireless headset featuring Bluetooth 2.1 connectivity with aptX codec support for high-quality audio and NoiseGard 2.0 active noise cancellation. Weighing just 105g, it offers a foldable design with DuoFol drivers that deliver a wide frequency response of 15Hz to 22kHz and a sound pressure level of 107dB. Key advantages include its lightweight build, a removable/replaceable battery providing up to 20 hours of life (8–10 hours with ANC and Bluetooth), and a unique 'TalkThrough' feature for external monitoring. However, users may find the small on-ear cups uncomfortable for long sessions, and the active noise cancellation can introduce a slight audible hiss or minor bass distortion at high volumes.

Technical Specifications of Sennheiser mm 450 X Travel

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%

8.1

Sound

20.0%

3.9

Features

10.0%

8.3

Design

8.0%

6.1

Connectivity

6.0%

3.5

Battery

4.0%

8.6

Calls & Controls

6.9
Sennheiser mm 450 X Travel has a technical score of 6.88 points, which is higher than that of 81.7% 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%

7.8

User reviews

30.0%

5.8

Popularity

User score:
United Kingdom
amazon
3.9
(190)
United States
Amazon_logo.png
3.9
(190)

(Reviews last updated: Jun 2026)

7.2
Sennheiser mm 450 X Travel has a user score of 7.2 points, which is lower than that of 75.7% 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.
5.8
Sennheiser mm 450 X Travel has a popularity of 5.8 points, which is higher than 56.4% 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%

6.9

Overall score

40.0%

9.2

Price

7.6
Sennheiser mm 450 X Travel has a quality-to-price ratio of 7.6 points, which is higher than 76.6% 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

yes
Sennheiser mm 450 X Travel supports active noise cancellation. 72.6% 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

?
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 mm 450 X Travel 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

15 Hz
Sennheiser mm 450 X Travel reaches a lowest frequency of 15 Hz, lower lowest frequency than 58.5% of headphones and equal to 5.7% of headphones.
Show more
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

yes
Sennheiser mm 450 X Travel supports a noise-canceling microphone. 54.5% 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 mm 450 X Travel 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 mm 450 X Travel 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 mm 450 X Travel 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 mm 450 X Travel 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

2.1
Sennheiser mm 450 X Travel uses Bluetooth version 2.1, newer Bluetooth version than 55% of headphones and equal to 0.7% 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 mm 450 X Travel 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

?
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

yes
Sennheiser mm 450 X Travel supports multipoint. 35% 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

yes
Sennheiser mm 450 X Travel supports ambient sound mode. 23.2% of headphones support ambient sound mode.
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

no
Sennheiser mm 450 X Travel does not support EQ customization. 23.3% 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 mm 450 X Travel 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

yes
Sennheiser mm 450 X Travel supports voice assistants. 39.2% of headphones support voice assistants.
Show more
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

8 hours
Sennheiser mm 450 X Travel offers battery life of 8 hours, lower battery life than 93.8% of headphones and equal to 3.9% 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

8 hours
Sennheiser mm 450 X Travel offers battery life with ANC of 8 hours, lower battery life with ANC than 97.4% of headphones and equal to 1.6% of headphones.
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

3 hours
Sennheiser mm 450 X Travel needs 3 hours to charge, higher charging time than 66% of headphones and equal to 21.3% 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

?
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

270 mAh
Sennheiser mm 450 X Travel has a battery capacity of 270 mAh, lower battery capacity than 90.8% of headphones and equal to 0.4% 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

on-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

105 g
Sennheiser mm 450 X Travel weighs 105 g, lighter than 78% of headphones and equal to 0.2% 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 mm 450 X Travel vs the average headphone

  • Active noise cancellation
    Sennheiser mm 450 X Travel supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
    What it is: Reduces background noise using active technology
    When it matters: When blocking office, travel, or aircraft noise is a priority.

    Importance: HIGH

    Sennheiser mm 450 X Travel supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
  • More flexible connectivity
    Sennheiser mm 450 X Travel 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 mm 450 X Travel offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
  • 51.8% lower weight
    Sennheiser mm 450 X Travel is lighter than the average headphone (105 g vs 218 g). The average pair of headphones weighs 218 g.
    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

    Sennheiser mm 450 X Travel is lighter than the average headphone (105 g vs 218 g). The average pair of headphones weighs 218 g.105 g vs 218 g
  • Clear call microphone
    Sennheiser mm 450 X Travel offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
    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

    Sennheiser mm 450 X Travel offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • On-device controls
    Sennheiser mm 450 X Travel 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 mm 450 X Travel includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • 5 dB/mW higher sensitivity
    Sennheiser mm 450 X Travel has a higher sensitivity than the average headphone (107 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 mm 450 X Travel has a higher sensitivity than the average headphone (107 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.107 dB/mW vs 102 dB/mW
  • 0.2 % lower distortion
    Sennheiser mm 450 X Travel has a lower total harmonic distortion than the average headphone (0.1 % 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 mm 450 X Travel has a lower total harmonic distortion than the average headphone (0.1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.0.1 % vs 0.3 %
  • Wind noise reduction
    Sennheiser mm 450 X Travel reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
    What it is: Reduces wind interference for clearer outdoor calls
    When it matters: When you take calls outdoors while walking, cycling, or commuting.

    Importance: LOW

    Sennheiser mm 450 X Travel reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
  • 51.8% lower weight
    Sennheiser mm 450 X Travel is lighter than the average headphone (105 g vs 218 g). The average pair of headphones weighs 218 g.
  • Foldable design
    Sennheiser mm 450 X Travel has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • Active noise cancellation
    Sennheiser mm 450 X Travel supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
  • 5 dB/mW higher sensitivity
    Sennheiser mm 450 X Travel has a higher sensitivity than the average headphone (107 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 0.2 % lower distortion
    Sennheiser mm 450 X Travel has a lower total harmonic distortion than the average headphone (0.1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
  • 3 Hz lower bass extension
    Sennheiser mm 450 X Travel has a lower lowest frequency than the average headphone (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 2,000 Hz higher treble extension
    Sennheiser mm 450 X Travel 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.
  • Removable battery
    Sennheiser mm 450 X Travel has a removable battery, the average headphone does not. 7.6% of headphones have a removable battery.
  • Rechargeable battery
    Sennheiser mm 450 X Travel has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
  • Play while charging
    Sennheiser mm 450 X Travel can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
  • More flexible connectivity
    Sennheiser mm 450 X Travel offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
  • Clear call microphone
    Sennheiser mm 450 X Travel offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • On-device controls
    Sennheiser mm 450 X Travel includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • Wind noise reduction
    Sennheiser mm 450 X Travel reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
  • 1 more microphones
    Sennheiser mm 450 X Travel has more microphones than the average headphone (2 vs 1). The average headphones have 1 microphones.
  • Sidetone support
    Sennheiser mm 450 X Travel supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • Quick mic mute
    Sennheiser mm 450 X Travel includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
  • 10 mm tighter earcup height
    Sennheiser mm 450 X Travel has tighter earcup height than the average headphone (50 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
  • Tangle-prone cable
    Sennheiser mm 450 X Travel uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
    no tangle-free listening cable is present or specified.
  • 3 mm tighter earcup width
    Sennheiser mm 450 X Travel has tighter earcup width than the average headphone (40 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
  • 1 hours longer charging time
    Sennheiser mm 450 X Travel has a higher charging time than the average headphone (3 hours vs 2 hours). The average headphones need 2 hours to charge.
  • 22 hours shorter battery life
    Sennheiser mm 450 X Travel has a lower battery life than the average headphone (8 hours vs 30 hours). The average headphones offer battery life of 30 hours.
  • 22 hours shorter ANC battery life
    Sennheiser mm 450 X Travel has a lower battery life with ANC than the average headphone (8 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
  • 55% lower battery capacity
    Sennheiser mm 450 X Travel has a lower battery capacity than the average headphone (270 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
  • 5 older release date
    Sennheiser mm 450 X Travel was released earlier than the average headphone (2,012 vs 2,017). The average headphones were released in 2,017.
    November 2012
  • 1 hours longer charging time
    Sennheiser mm 450 X Travel has a higher charging time than the average headphone (3 hours vs 2 hours). The average headphones need 2 hours to charge.
    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

    Sennheiser mm 450 X Travel has a higher charging time than the average headphone (3 hours vs 2 hours). The average headphones need 2 hours to charge.3 hours vs 2 hours
  • 22 hours shorter battery life
    Sennheiser mm 450 X Travel has a lower battery life than the average headphone (8 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 mm 450 X Travel has a lower battery life than the average headphone (8 hours vs 30 hours). The average headphones offer battery life of 30 hours.8 hours vs 30 hours
  • 22 hours shorter ANC battery life
    Sennheiser mm 450 X Travel has a lower battery life with ANC than the average headphone (8 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
    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

    Sennheiser mm 450 X Travel has a lower battery life with ANC than the average headphone (8 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.8 hours vs 30 hours
  • 10 mm tighter earcup height
    Sennheiser mm 450 X Travel has tighter earcup height than the average headphone (50 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 mm 450 X Travel has tighter earcup height than the average headphone (50 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.50 mm vs 60 mm
  • 55% lower battery capacity
    Sennheiser mm 450 X Travel has a lower battery capacity than the average headphone (270 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
    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

    Sennheiser mm 450 X Travel has a lower battery capacity than the average headphone (270 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.270 mAh vs 600 mAh
  • Tangle-prone cable
    Sennheiser mm 450 X Travel uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
    no tangle-free listening cable is present or specified.
    What it is: Cable designed to resist tangling
    When it matters: When you often carry wired headphones in a bag or pocket.

    Importance: LOW

    Sennheiser mm 450 X Travel uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
  • 2.89x more expensive
    Sennheiser mm 450 X Travel is more expensive than the average headphone (£260 vs £90).
    Sennheiser mm 450 X Travel is more expensive than the average headphone (£260 vs £90).£260 vs £90
  • 3 mm tighter earcup width
    Sennheiser mm 450 X Travel has tighter earcup width than the average headphone (40 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
    What it is: Internal width of the earcup cavity
    When it matters: When earcup fit affects comfort and pressure around your ears.

    Importance: MEDIUM

    Sennheiser mm 450 X Travel has tighter earcup width than the average headphone (40 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.40 mm vs 43 mm

Graphic comparison of Sennheiser mm 450 X Travel and

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Third-party reviews

United Kingdom
United States

(Reviews last updated: Jun 2026)

What customers like about Sennheiser mm 450 X Travel?

  • Extremely compact and foldable design ideal for travelers
  • Excellent audio reproduction with crisp highs and balanced mids
  • Highly portable and lightweight, weighing only about 7 ounces
  • Versatile listening options including Bluetooth, wired, and NoiseGard
  • AptX support for CD-quality audio over wireless connections
  • Replaceable battery and ear cushions for increased longevity
  • Helpful 'TalkThrough' feature for communicating without removing the headset

What customers dislike about Sennheiser mm 450 X Travel?

  • Noise cancellation performance is average and can emit a slight hiss
  • On-ear design may become uncomfortable during long listening sessions
  • High retail price compared to the noise-canceling performance
  • On-ear cups do not isolate as much high-frequency noise as over-ear models
  • Distortion can occur at high volumes when NoiseGard is activated
  • Battery life decreases significantly when using both Bluetooth and ANC (roughly 8 hours)
  • Call quality and voice command success (e.g., with Siri) are only average
  • Built-in blue status light flashes every few seconds, which can be distracting in dark environments

Expert reviews

T
techhive.com
23/05/2013

The Sennheiser MM 450-X is a premium, on-ear travel headphone designed for portability and versatility, though its high $450 price tag creates stiff competition. A major highlight is its robust Bluetooth implementation, which offers a deep command set—including a dedicated button for Siri and a TalkThrough feature that allows you to hear surroundings without removing the headset....Read more

P
pcmag.com
29/04/2013

The Sennheiser MM 450-X is a versatile, lightweight on-ear headset offering crisp wireless audio, Bluetooth connectivity, active noise cancellation (ANC), and a wired passive mode. While the audio performance is generally strong, the ANC produces a noticeable background hiss, and deep sub-bass tracks can cause significant distortion at high volumes. PCMag UKDespite these features,...Read more

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samma3a.com
04/07/2014

The Samma3a Tech review highlights the Sennheiser MM450-X and MM550-X as premium, highly durable wireless active noise-canceling headphones optimized for business travelers. Weighing just 105 grams, the MM450-X features a collapsible on-ear design with a frequency response of 15–22,000Hz and a 10-hour battery life. Key pros mentioned in the review include its impressive, balanced...Read more

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telegraph.co.uk
06/07/2010

The Telegraph review highlights the Sennheiser MM 450 Travel as premium, feature-packed wireless headphones, praising their robust, sleek design, active noise cancellation, and seamless mobile connectivity. The absence of cables offers a liberating experience for users, eliminating cord issues and enhancing usability during activity. The TelegraphHowever, the review notes that the...Read more

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rtings.com
23/03/2016

The Sennheiser MM 450-X Wireless headphones are compact, on-ear headphones suited for casual, daily use, featuring good audio reproduction for vocals and instruments, a portable, foldable design, and decent noise leakage performance. However, significant drawbacks include uncomfortable, small ear cups, a weak, flimsy build quality, and ineffective active noise cancellation that...Read more

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computerbild.de
06/10/2011

The Computer Bild review awards the Sennheiser MM 450 Travel Bluetooth headphones a "good" rating of 2.3 for its strong audio delivery and extensive feature set. The headphones excel in sound quality, producing clean bass and highly detailed highs during playback tests. Its active noise cancellation technology, known as Noise-Guard, effectively blocks out ambient noise, making it a...Read more

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hifitest.de
28/01/2016

Overview The Sennheiser MM 450-X TRAVEL is a highly capable, lightweight (105g) Bluetooth on-ear headphone engineered specifically for frequent travelers, earning a "Spitzenklasse" (top-class) rating and a 4 out of 5 stars score in this review. Though its physical aesthetics look slightly dated—resembling corporate conference gear rather than trendy consumer electronics—and it...Read more

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viedegeek.fr
05/02/2013

The long-term review from the French tech blog Vie de Geek gives the Sennheiser MM 450-X Bluetooth headphones a stinging final score of 0 out of 10, branding it an absolute fiasco despite the prestigious brand name. On the positive side, the reviewer praises the hardware package and physical build, noting its robust, foldable design and an incredibly generous array of premium travel...Read more

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iculture.nl
31/08/2010

The iCulture review evaluates the Sennheiser MM 450 Travel, a premium on-ear wireless Bluetooth headset designed specifically for users on the go. The reviewer highly praises its excellent sound quality, highlighted by a broad frequency range of 15 to 22,000 Hz that delivers rich bass and clear background details. Key integrated features like Bluetooth 2.1, NoiseGuard 2.0 active...Read more

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