OneOdio A40 Review | 93 Data compared

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  • Avg. price in UK: ~£130
  • Avg. price in US: ~$80
  • Form factor: over-ear
  • Connectivity: wireless
  • Battery life: 16 hours
  • Active noise cancellation (ANC): yes

OneOdio A40 review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

7.8

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%

7.4

Technical Score

20.0%

9.1

User score

Very good
7.4

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%

8.7

Sound

20.0%

6.4

Features

10.0%

5.4

Design

8.0%

4.9

Connectivity

6.0%

6.1

Battery

4.0%

9.0

Calls & Controls

Very good
9.1

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%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(17790)
amazon
4.2
(1243)
United States
Amazon_logo.png
4.4
(17790)
Amazon_logo.png
4.2
(1243)

(Reviews last updated: Jun 2026)

Exceptional
  • 7.1
    Gaming

    Score components:

    35.0%

    10

    Audio latency

    25.0%

    1.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    10

    Noise-canceling microphone

    8.0%

    2.4

    Battery life

  • 5.1
    Travel

    Score components:

    28.0%

    10

    Active noise cancellation (ANC)

    24.0%

    2.4

    Battery life

    18.0%

    1.0

    Weight

    16.0%

    1.0

    Multipoint support

    14.0%

    10

    Ambient sound mode

  • 6.9
    Calls

    Score components:

    28.0%

    10

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    1.0

    Multipoint support

    16.0%

    2.4

    Battery life

    14.0%

    8.0

    Companion app

  • 5.1
    Workout

    Score components:

    28.0%

    1.0

    Weight

    24.0%

    10

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    2.4

    Battery life

    12.0%

    10

    Can be used as a headset

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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 OneOdio A40 is an over-ear wireless headset featuring hybrid active noise cancellation (ANC) that reduces ambient noise by up to 20dB and 40mm neodymium drivers delivering a frequency response of 20Hz to 20kHz with a sensitivity of 102dB/mW. Key characteristics include Bluetooth 5.0 connectivity, a built-in CVC 6.0 noise-canceling microphone for clear calls, and a foldable design with protein leather memory foam earmuffs for long-term comfort. Its main pros are the versatile dual-mode connectivity (wireless and 3.5mm wired), included travel accessories like an airplane adapter, and a lightweight, durable build that provides great value for the price. However, its battery life is relatively short compared to newer models, offering approximately 16 to 25 hours of playtime, and some users note that voice quality in communication mode can occasionally sound muddy.

Technical Specifications of OneOdio A40

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%

8.7

Sound

20.0%

6.4

Features

10.0%

5.4

Design

8.0%

4.9

Connectivity

6.0%

6.1

Battery

4.0%

9.0

Calls & Controls

7.4
OneOdio A40 has a technical score of 7.44 points, which is higher than that of 88.6% 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%

8.8

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(17790)
amazon
4.2
(1243)
United States
Amazon_logo.png
4.4
(17790)
Amazon_logo.png
4.2
(1243)

(Reviews last updated: Jun 2026)

9.1
OneOdio A40 has a user score of 9.14 points, which is higher than that of 90% 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
OneOdio A40 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%

7.8

Overall score

40.0%

9.8

Price

8.4
OneOdio A40 has a quality-to-price ratio of 8.4 points, which is higher than 92.2% 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

yes
OneOdio A40 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

40 mm
OneOdio A40 uses a driver size of 40 mm, larger driver size than 28.2% of headphones and equal to 53.6% 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
OneOdio A40 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

20 Hz
OneOdio A40 reaches a lowest frequency of 20 Hz, higher lowest frequency than 50.6% of headphones and equal to 47.5% 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

yes
OneOdio A40 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
OneOdio A40 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
OneOdio A40 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
OneOdio A40 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
OneOdio A40 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

5.0
OneOdio A40 uses Bluetooth version 5.0, newer Bluetooth version than 70.9% of headphones and equal to 13% 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
OneOdio A40 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

40 ms
OneOdio A40 has audio latency of 40 ms, lower audio latency than 74.7% of headphones and equal to 15.5% 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
OneOdio A40 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

yes
OneOdio A40 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

yes
OneOdio A40 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

?
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
OneOdio A40 supports voice assistants. 39.2% of headphones support voice assistants.
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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

16 hours
OneOdio A40 offers battery life of 16 hours, lower battery life than 77.3% of headphones and equal to 2.4% 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

?
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

2.5 hours
OneOdio A40 needs 2.5 hours to charge, higher charging time than 52.4% of headphones and equal to 12.9% 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

yes
OneOdio A40 supports quick charge. 31% 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

400 mAh
OneOdio A40 has a battery capacity of 400 mAh, lower battery capacity than 70.3% of headphones and equal to 8.5% 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

OneOdio
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

500 g
OneOdio A40 weighs 500 g, heavier than 98.6% 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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OneOdio A40 vs the average headphone

  • Active noise cancellation
    OneOdio A40 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

    OneOdio A40 supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
  • Hi-Res Audio certification
    OneOdio A40 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
    What it is: Certified for high-resolution audio playback
    When it matters: When official support for high-resolution playback matters to you.

    Importance: LOW

    OneOdio A40 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
  • EQ customization
    OneOdio A40 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

    OneOdio A40 supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
  • More flexible connectivity
    OneOdio A40 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

    OneOdio A40 offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
  • Clear call microphone
    OneOdio A40 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

    OneOdio A40 offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • 87.5 ms lower audio latency
    OneOdio A40 has a lower audio latency than the average headphone (40 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

    OneOdio A40 has a lower audio latency than the average headphone (40 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.40 ms vs 127.5 ms
  • On-device controls
    OneOdio A40 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

    OneOdio A40 includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • In-line controls
    OneOdio A40 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
    What it is: Controls available on in-line remote of wired cable
    When it matters: When your wired setup depends on cable-mounted buttons or call controls.

    Importance: LOW

    OneOdio A40 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Foldable design
    OneOdio A40 has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • Water resistance
    OneOdio A40 is water resistant, the average headphone is not. 20.2% of headphones are water resistant.
  • Active noise cancellation
    OneOdio A40 supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
  • Hi-Res Audio certification
    OneOdio A40 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
  • Rechargeable battery
    OneOdio A40 has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
  • More flexible connectivity
    OneOdio A40 offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
  • 87.5 ms lower audio latency
    OneOdio A40 has a lower audio latency than the average headphone (40 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.
  • Clear call microphone
    OneOdio A40 offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • On-device controls
    OneOdio A40 includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • In-line controls
    OneOdio A40 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Wind noise reduction
    OneOdio A40 reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
  • 1 more microphones
    OneOdio A40 has more microphones than the average headphone (2 vs 1). The average headphones have 1 microphones.
  • EQ customization
    OneOdio A40 supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
  • 2.29x higher weight
    OneOdio A40 is heavier than the average headphone (500 g vs 218 g). The average pair of headphones weighs 218 g.
  • Tangle-prone cable
    OneOdio A40 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
  • 0.7 % higher distortion
    OneOdio A40 has a higher total harmonic distortion than the average headphone (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
  • 2 Hz weaker bass extension
    OneOdio A40 has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 0.5 hours longer charging time
    OneOdio A40 has a higher charging time than the average headphone (2.5 hours vs 2 hours). The average headphones need 2 hours to charge.
  • 14 hours shorter battery life
    OneOdio A40 has a lower battery life than the average headphone (16 hours vs 30 hours). The average headphones offer battery life of 30 hours.
  • 33.3% lower battery capacity
    OneOdio A40 has a lower battery capacity than the average headphone (400 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
  • 2.29x higher weight
    OneOdio A40 is heavier than the average headphone (500 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

    OneOdio A40 is heavier than the average headphone (500 g vs 218 g). The average pair of headphones weighs 218 g.500 g vs 218 g
  • 0.7 % higher distortion
    OneOdio A40 has a higher total harmonic distortion than the average headphone (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%

    OneOdio A40 has a higher total harmonic distortion than the average headphone (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.1 % vs 0.3 %
  • 0.5 hours longer charging time
    OneOdio A40 has a higher charging time than the average headphone (2.5 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

    OneOdio A40 has a higher charging time than the average headphone (2.5 hours vs 2 hours). The average headphones need 2 hours to charge.2.5 hours vs 2 hours
  • 14 hours shorter battery life
    OneOdio A40 has a lower battery life than the average headphone (16 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

    OneOdio A40 has a lower battery life than the average headphone (16 hours vs 30 hours). The average headphones offer battery life of 30 hours.16 hours vs 30 hours
  • 2 Hz weaker bass extension
    OneOdio A40 has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    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

    OneOdio A40 has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.20 Hz vs 18 Hz
  • 33.3% lower battery capacity
    OneOdio A40 has a lower battery capacity than the average headphone (400 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

    OneOdio A40 has a lower battery capacity than the average headphone (400 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.400 mAh vs 600 mAh
  • Tangle-prone cable
    OneOdio A40 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
    What it is: Cable designed to resist tangling
    When it matters: When you often carry wired headphones in a bag or pocket.

    Importance: LOW

    OneOdio A40 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.

Graphic comparison of OneOdio A40 and

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Third-party reviews

(Reviews last updated: Jun 2026)

What customers like about OneOdio A40?

  • Excellent value for money in the budget price range
  • Effective Active Noise Cancellation (ANC) for daily commutes and travel
  • High level of comfort with soft protein memory foam ear pads and adjustable headband
  • Includes helpful accessories like a travel pouch, airplane adapter, and detachable cables
  • Supports multi-point Bluetooth pairing for two devices simultaneously
  • Impressive sound quality for the price, featuring a clear and balanced audio profile

What customers dislike about OneOdio A40?

  • Voice quality in 'communication' or call mode can sound muddy or low quality
  • ANC performance may fall short of expectations compared to premium high-end brands
  • Microphonics issue where touching the cable can transmit audible noise through the headset
  • Higher volumes may result in harsh treble or dominant high frequencies
  • Limited battery life compared to some newer competitors (approx. 16–25 hours depending on mode)

Expert reviews

D
djmusicgeek.com
05/10/2022

The OneOdio A Series review on DJ Music Geek highlights these wireless, over-ear headphones as a top-selling, high-value option for casual and serious audio enthusiasts alike. The reviewer strongly emphasizes several pros, beginning with a premium build quality, comfortable over-ear padding, and an adjustable headrest that accommodates various head sizes. Powered by custom 40mm...Read more

Video reviews

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