Sony MDR HW300k Review | 93 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$150
  • Form factor: over-ear
  • Connectivity: wireless
  • Battery life: 10 hours
  • Active noise cancellation (ANC): no

Sony MDR HW300k review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

4.7

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%

4.3

Technical Score

20.0%

6.7

User score

Poor
4.3

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%

4.7

Sound

20.0%

1.9

Features

10.0%

7.2

Design

8.0%

3.9

Connectivity

6.0%

3.6

Battery

4.0%

4.6

Calls & Controls

Poor
6.7

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%

8.4

User reviews

30.0%

2.7

Popularity

User score:
United Kingdom
amazon
4.2
(30)
United States
Amazon_logo.png
4.2
(30)

(Reviews last updated: June 2026)

Good
  • 5.6
    Gaming

    Score components:

    35.0%

    9.0

    Audio latency

    25.0%

    1.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    1.0

    Noise-canceling microphone

    8.0%

    1.3

    Battery life

  • 1.8
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    1.3

    Battery life

    18.0%

    5.9

    Weight

    16.0%

    1.0

    Multipoint support

    14.0%

    0.0

    Ambient sound mode

  • 3.2
    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%

    1.3

    Battery life

    14.0%

    1.0

    Companion app

  • 4.1
    Workout

    Score components:

    28.0%

    5.9

    Weight

    24.0%

    1.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    1.3

    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 Sony MDR-HW300K is a digital wireless headphone system utilizing 2.4GHz RF technology to deliver uncompressed audio with a 30-meter range. These closed-back, over-ear headphones feature 40mm neodymium drivers, a frequency response of 10Hz–22,000Hz, 32-ohm impedance, and a sensitivity of 98dB/mW. Key pros include a lightweight 190g design, up to 10 hours of battery life with a 3-hour charge time, and a passive mode for wired listening via a 1.5m detachable cable. However, some users note potential cons such as limited signal range through obstacles, occasional squeaking noises during adjustment, and sound quality that may not meet critical listening standards.

Technical Specifications of Sony MDR HW300k

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%

4.7

Sound

20.0%

1.9

Features

10.0%

7.2

Design

8.0%

3.9

Connectivity

6.0%

3.6

Battery

4.0%

4.6

Calls & Controls

4.3
Sony MDR HW300k has a technical score of 4.26 points, which is lower than that of 81.9% 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%

8.4

User reviews

30.0%

2.7

Popularity

User score:
United Kingdom
amazon
4.2
(30)
United States
Amazon_logo.png
4.2
(30)

(Reviews last updated: June 2026)

6.7
Sony MDR HW300k has a user score of 6.68 points, which is lower than that of 84% 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.
2.7
Sony MDR HW300k has a popularity of 2.7 points, which is lower than 62.7% 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%

4.7

Overall score

40.0%

9.9

Price

6.3
Sony MDR HW300k has a quality-to-price ratio of 6.3 points, which is lower than 70.8% 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
Sony MDR HW300k 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

40 mm
Sony MDR HW300k 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
Sony MDR HW300k 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

10 Hz
Sony MDR HW300k reaches a lowest frequency of 10 Hz, lower lowest frequency than 67.3% of headphones and equal to 12.5% 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
Sony MDR HW300k 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
Sony MDR HW300k 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

0
Sony MDR HW300k has 0 microphones, fewer microphones than 74.1% of headphones and equal to 25.9% 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
Sony MDR HW300k 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

N/A
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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
Sony MDR HW300k 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

N/A
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

N/A
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

no
Sony MDR HW300k does not support multipoint. 65.1% of headphones support multipoint.
Show more
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

no
Sony MDR HW300k 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
Sony MDR HW300k 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

no
Sony MDR HW300k does not support voice assistants. 60.9% 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

10 hours
Sony MDR HW300k offers battery life of 10 hours, lower battery life than 90% of headphones and equal to 2.7% 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

3 hours
Sony MDR HW300k 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

no
Sony MDR HW300k 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

610 mAh
Sony MDR HW300k has a battery capacity of 610 mAh, higher battery capacity than 57% of headphones and equal to 3% 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

Sony
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

190 g
Sony MDR HW300k weighs 190 g, lighter than 59.1% of headphones and equal to 1.1% 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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Sony MDR HW300k vs the average headphone

  • More flexible connectivity
    Sony MDR HW300k 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

    Sony MDR HW300k offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
  • 8 Hz lower bass extension
    Sony MDR HW300k has a lower lowest frequency than the average headphone (10 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

    Sony MDR HW300k has a lower lowest frequency than the average headphone (10 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.10 Hz vs 18 Hz
  • On-device controls
    Sony MDR HW300k 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

    Sony MDR HW300k includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • Sidetone support
    Sony MDR HW300k 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

    Sony MDR HW300k supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • 12.8% lower weight
    Sony MDR HW300k is lighter than the average headphone (190 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

    Sony MDR HW300k is lighter than the average headphone (190 g vs 218 g). The average pair of headphones weighs 218 g.190 g vs 218 g
  • Rechargeable battery
    Sony MDR HW300k has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
    What it is: Shows whether the headphones rely on an internal rechargeable battery instead of replaceable disposable cells.
    When it matters: When you expect regular wireless use and want charging convenience instead of buying and replacing disposable batteries.

    Importance: MEDIUM

    Sony MDR HW300k has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
  • 10x higher input power handling
    Sony MDR HW300k has a higher max input power than the average headphone (1,000 mW vs 100 mW). The average headphones handle max input power of 100 mW.
    What it is: Maximum input power the drivers can safely handle
    When it matters: When you pair the headphones with stronger sources or dedicated gear.

    Importance: LOW

    Good value: >=300 mW

    Sony MDR HW300k has a higher max input power than the average headphone (1,000 mW vs 100 mW). The average headphones handle max input power of 100 mW.1000 mW vs 100 mW
  • Play while charging
    Sony MDR HW300k can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
    What it is: Can be used while charging
    When it matters: When you need to keep listening during long work or gaming sessions.

    Importance: LOW

    Sony MDR HW300k can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
  • 12.8% lower weight
    Sony MDR HW300k is lighter than the average headphone (190 g vs 218 g). The average pair of headphones weighs 218 g.
  • 8 Hz lower bass extension
    Sony MDR HW300k has a lower lowest frequency than the average headphone (10 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 10x higher input power handling
    Sony MDR HW300k has a higher max input power than the average headphone (1,000 mW vs 100 mW). The average headphones handle max input power of 100 mW.
  • 2,000 Hz higher treble extension
    Sony MDR HW300k 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.
  • 18 dB higher max SPL
    Sony MDR HW300k has a higher max SPL than the average headphone (128 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
  • Rechargeable battery
    Sony MDR HW300k has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
  • Play while charging
    Sony MDR HW300k can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
  • More flexible connectivity
    Sony MDR HW300k offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
  • On-device controls
    Sony MDR HW300k includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • Sidetone support
    Sony MDR HW300k supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • Tangle-prone cable
    Sony MDR HW300k 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.
  • No travel bag
    Sony MDR HW300k does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
  • 0.7 % higher distortion
    Sony MDR HW300k has a higher total harmonic distortion than the average headphone (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
  • 4 dB/mW lower sensitivity
    Sony MDR HW300k has a lower sensitivity than the average headphone (98 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 5 dB SPL lower sound pressure level
    Sony MDR HW300k has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • 1 hours longer charging time
    Sony MDR HW300k has a higher charging time than the average headphone (3 hours vs 2 hours). The average headphones need 2 hours to charge.
  • 20 hours shorter battery life
    Sony MDR HW300k has a lower battery life than the average headphone (10 hours vs 30 hours). The average headphones offer battery life of 30 hours.
  • 1 fewer microphones
    Sony MDR HW300k has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.
  • No voice assistant support
    Sony MDR HW300k does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • 1 hours longer charging time
    Sony MDR HW300k 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

    Sony MDR HW300k 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
  • No voice assistant support
    Sony MDR HW300k does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
    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

    Sony MDR HW300k does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • 0.7 % higher distortion
    Sony MDR HW300k 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%

    Sony MDR HW300k 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 %
  • 20 hours shorter battery life
    Sony MDR HW300k has a lower battery life than the average headphone (10 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

    Sony MDR HW300k has a lower battery life than the average headphone (10 hours vs 30 hours). The average headphones offer battery life of 30 hours.10 hours vs 30 hours
  • 4 dB/mW lower sensitivity
    Sony MDR HW300k has a lower sensitivity than the average headphone (98 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

    Sony MDR HW300k has a lower sensitivity than the average headphone (98 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.98 dB/mW vs 102 dB/mW
  • 1 fewer microphones
    Sony MDR HW300k has fewer microphones than the average headphone (0 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

    Sony MDR HW300k has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.0 vs 1
  • Tangle-prone cable
    Sony MDR HW300k 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

    Sony MDR HW300k uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
  • No travel bag
    Sony MDR HW300k does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
    What it is: Comes with a protective carrying case or pouch
    When it matters: When protection in transit matters right out of the box.

    Importance: LOW

    Sony MDR HW300k does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.

Graphic comparison of Sony MDR HW300k and

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Third-party reviews

United Kingdom
United States

(Reviews last updated: June 2026)

What customers like about Sony MDR HW300k?

  • Lightweight and comfortable for shorter sessions
  • Balanced sound profile with clear dialogue for TV and movies
  • Easy setup process with the wireless transmitter
  • Includes an auxiliary cable for a wired connection option
  • Budget-friendly price point for a wireless system
  • Compact and small transmitter design
  • Uncompressed 2.4 GHz signal reduces interference compared to older models

What customers dislike about Sony MDR HW300k?

  • Limited wireless range; signal often drops when moving between rooms
  • Battery life is relatively short (rated for 10 hours, often less in practice)
  • Can cause ear discomfort or 'pinching' during extended wear
  • Long charging time (up to 3-4 hours for a full charge)
  • Hardware can produce a squeaky or creaky noise when adjusting the ear cups
  • Lack of advanced inputs like HDMI or Optical on the base station
  • Bass and high-frequency performance may feel lacking or 'muted' for audiophiles

Expert reviews

C
cuffiewireless.it
11/03/2019

The Sony MDR-RF855RK is a budget-friendly pair of over-ear wireless headphones designed primarily for watching television without disturbing others. Operating on FM stereo radiofrequency, it boasts an impressive signal range of up to 100 meters and provides a very good, clear audio response of 10–22,000 Hz for general TV dialogue and casual music listening. Users will find it highly...Read more

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