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Products in this category are evaluated mathematically under Frontumo Headphones Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
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Marshall Monitor III Review | 93 Data compared

Avg. price:~£310Form factor:over-earConnectivity:wirelessBattery life:100 hoursActive noise cancellation (ANC):yes

Marshall Monitor III Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

8.3

Overall score

Score
8.3/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

80%

8.2

Technical score

20%

8.8

User score

★Better than 95% of headphones
8.2

Technical score

Technical score
8.2/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

52%

8.6

Sound

20%

8.0

Features

10%

7.2

Design

8%

6.3

Connectivity

6%

8.9

Battery

4%

8.7

Calls & Controls

★Better than 93% of headphones
8.8

User score

User score
8.8/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

9.2

User ratings

30%

7.8

Number of reviews

Based on 1,520 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–²Better than 88% of headphones
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Technical Specifications of pair of headphones Marshall Monitor III

Technical score
Technical score
8.2/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

52%

8.6

Sound

20%

8.0

Features

10%

7.2

Design

8%

6.3

Connectivity

6%

8.9

Battery

4%

8.7

Calls & Controls

8.2
User score
User score
8.8/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

9.2

User ratings

30%

7.8

Number of reviews

Based on 1,520 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.8
Popularity
Popularity
7.8/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
Marshall Monitor III has a popularity score of 7.8 points, which is higher than that of 74.1% of products in this category.
7.8
Value for money
Value for money
8.5/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components:

60%

8.3

Overall score

40%

8.9

Price

8.5
Active noise cancellation (ANC)
yes
Active noise cancellation (ANC)
yes
This pair of headphones supports active noise cancellation. 72.6% of headphones support active noise cancellation.
Driver type
dynamic
Driver size
32 mm
Driver size
32 mm
This pair of headphones uses a driver size of 32 mm, smaller driver size than 74.2% of headphones and equal to 3% of headphones.
Number of drivers
1
Number of drivers
1
This pair of headphones uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% of headphones.
Lowest frequency
20 Hz
Lowest frequency
20 Hz
This pair of headphones reaches a lowest frequency of 20 Hz, higher lowest frequency than 50.8% of headphones and equal to 47.3% of headphones.
Show more
Noise-canceling microphone
yes
Noise-canceling microphone
yes
This pair of headphones supports a noise-canceling microphone. 61.1% of headphones support noise-canceling microphones.
Can be used as a headset
yes
Can be used as a headset
yes
This pair of headphones is headset-ready, 84.8% is not. 15.2% of headphones can be used as headsets.
Number of microphones
4
Number of microphones
4
This pair of headphones has 4 microphones, more microphones than 88% of headphones and equal to 5.1% of headphones.
Boom microphone
no
Boom microphone
no
This pair of headphones does not include a boom microphone. 13.5% of headphones have a boom microphone.
Microphone SNR
?
Show more
Connectivity
wireless
Connectivity
wireless
This pair of headphones supports wireless connectivity, more flexible connectivity than 50.8% of headphones and equal to 49.2% of headphones.
Bluetooth version
5.3
Bluetooth version
5.3
This pair of headphones uses Bluetooth version 5.3, newer Bluetooth version than 88.7% of headphones and equal to 6.5% of headphones.
Maximum Bluetooth range
10 m
Maximum Bluetooth range
10 m
This pair of headphones offers a Bluetooth range of 10 m, higher Bluetooth range than 2.7% of headphones and equal to 80.6% of headphones.
Audio latency
200 ms
Audio latency
200 ms
This pair of headphones has audio latency of 200 ms, higher audio latency than 71.4% of headphones and equal to 13.9% of headphones.
Multipoint support
yes
Multipoint support
yes
This pair of headphones supports multipoint. 69.4% of headphones support multipoint.
Show more
Ambient sound mode
yes
Ambient sound mode
yes
This pair of headphones supports ambient sound mode. 75.2% of headphones support ambient sound mode.
EQ support
yes
EQ support
yes
This pair of headphones supports EQ customization. 76.8% of headphones support EQ.
Companion app
yes
Companion app
yes
This pair of headphones works with a companion app. 78.4% of headphones support companion apps.
Adjustable ANC levels
3
Adjustable ANC levels
3
This pair of headphones offers 3 adjustable ANC levels, more adjustable ANC levels than 94.6% of headphones and equal to 2.7% of headphones.
Voice assistant support
yes
Voice assistant support
yes
This pair of headphones supports voice assistants. 39.2% of headphones support voice assistants.
Show more
Battery life
100 hours
Battery life
100 hours
This pair of headphones offers battery life of 100 hours, higher battery life than 96.1% of headphones and equal to 2.2% of headphones.
Battery life with ANC
70 hours
Battery life with ANC
70 hours
This pair of headphones offers battery life with ANC of 70 hours, higher battery life with ANC than 96.1% of headphones and equal to 1.4% of headphones.
Charging time
2.5 hours
Charging time
2.5 hours
This pair of headphones needs 2.5 hours to charge, higher charging time than 53% of headphones and equal to 13% of headphones.
Quick charge
yes
Quick charge
yes
This pair of headphones supports quick charge. 67% of headphones support quick charge.
Battery capacity
500 mAh
Battery capacity
500 mAh
This pair of headphones has a battery capacity of 500 mAh, lower battery capacity than 55.3% of headphones and equal to 9.4% of headphones.
Show more
Brand name
Marshall
Form factor
over-ear
Weight
250 g
Weight
250 g
This pair of headphones weighs 250 g, heavier than 61.4% of headphones and equal to 1.5% of headphones.
Acoustic design
closed-back
Clamp force
?
Show more

Marshall Monitor III vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • Spatial audio support
    Spatial audio
    yes
    This pair of headphones supports spatial audio, the average pair of headphones does not. 15.9% of headphones support spatial audio.
  • Ambient sound mode
    Ambient sound mode
    yes
    This pair of headphones supports ambient sound mode, the average pair of headphones does not. 24.9% of headphones support ambient sound mode.
  • EQ customization
    EQ support
    yes
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • Companion app support
    Companion app
    yes
    This pair of headphones works with a companion app, the average pair of headphones does not. 21.6% of headphones support companion apps.
  • 70 hours longer battery life
    Battery life
    100 hours
    This pair of headphones has a higher battery life than the average pair of headphones (100 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    100 hours vs 30 hours
  • 15 dB/mW higher sensitivity
    Sensitivity
    117 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (117 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    117 dB/mW vs 102 dB/mW
  • Multipoint support
    Multipoint support
    yes
    This pair of headphones supports multipoint, the average pair of headphones does not. 30.6% of headphones support multipoint.
  • 16.5% better value for money
    Marshall Monitor III has better value for money than the average pair of headphones (8.47 vs 7.3).
    8.47 vs 7.27
  • 9.7% higher user score
    User score
    8.8/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Marshall Monitor III
    the average pair of headphones
    Marshall Monitor III has a higher user score than the average pair of headphones (8.78 vs 8.000).
    8.78 vs 8
  • 33 mm more spacious earcup width
    Earcup inner width
    77 mm
    This pair of headphones offers more spacious earcup width than the average pair of headphones (77 mm vs 44 mm). The average headphones offer an inner earcup width of 44 mm.
    77 mm vs 44 mm
  • Foldable design
    Foldable
    yes
    This pair of headphones has a foldable design, the average pair of headphones does not. 48.3% of headphones are foldable.
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • Spatial audio support
    Spatial audio
    yes
    This pair of headphones supports spatial audio, the average pair of headphones does not. 15.9% of headphones support spatial audio.
  • 15 dB/mW higher sensitivity
    Sensitivity
    117 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (117 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    117 dB/mW vs 102 dB/mW
  • 39x higher input power handling
    Max input power
    3,900 mW
    This pair of headphones has a higher max input power than the average pair of headphones (3900 mW vs 100 mW). The average headphones handle max input power of 100 mW.
    3,900 mW vs 100 mW
  • 14 dB SPL higher sound pressure level
    Sound pressure level
    117 dB SPL
    This pair of headphones has a higher sound pressure level than the average pair of headphones (117 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    117 dB SPL vs 103 dB SPL
  • 70 hours longer battery life
    Battery life
    100 hours
    This pair of headphones has a higher battery life than the average pair of headphones (100 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    100 hours vs 30 hours
  • 40 hours longer ANC battery life
    Battery life with ANC
    70 hours
    This pair of headphones has a higher battery life with ANC than the average pair of headphones (70 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
    70 hours vs 30 hours
  • Quick charge support
    Quick charge
    yes
    This pair of headphones supports quick charge, the average pair of headphones does not. 33% of headphones support quick charge.
  • USB-C charging
    USB Type-C
    yes
    This pair of headphones uses USB-C charging, the average pair of headphones does not. 29.5% of headphones use USB Type-C.
  • Play while charging
    Play while charging
    yes
    This pair of headphones can play while charging, the average pair of headphones cannot. 29.1% of headphones support play while charging.
  • Rechargeable battery
    Has a rechargeable battery
    yes
    This pair of headphones has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • Multipoint support
    Multipoint support
    yes
    This pair of headphones supports multipoint, the average pair of headphones does not. 30.6% of headphones support multipoint.
  • More flexible connectivity
    Connectivity
    wireless
    This pair of headphones offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support wired connectivity.
    wireless vs wired
  • LE Audio support
    Bluetooth LE Audio
    yes
    This pair of headphones supports LE Audio, the average pair of headphones does not. 11.6% of headphones support Bluetooth LE Audio.
  • AAC codec support
    AAC
    yes
    This pair of headphones supports AAC, the average pair of headphones does not. 32.2% of headphones support AAC.
  • Auracast support
    Auracast
    yes
    This pair of headphones supports Auracast, the average pair of headphones does not. 3.6% of headphones support Auracast.
  • Fast pairing support
    Fast pairing
    yes
    This pair of headphones supports fast pairing, the average pair of headphones does not. 14% of headphones support fast pairing.
  • Multipoint connections
    Multipoint connections
    yes
    This pair of headphones supports multipoint connections, while the average pair of headphones does not. 30.2% of headphones support multipoint connections.
    supports multipoint for up to 2 devices.
  • Clear call microphone
    Noise-canceling microphone
    yes
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • On-device controls
    On-device controls
    yes
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 3 more microphones
    Number of microphones
    4
    This pair of headphones has more microphones than the average pair of headphones (4 vs 1). The average headphones have 1 microphones.
    4 vs 1
  • Wind noise reduction
    Wind noise reduction
    yes
    This pair of headphones reduces wind noise, the average pair of headphones does not. 34.3% of headphones support wind noise reduction.
  • Ambient sound mode
    Ambient sound mode
    yes
    This pair of headphones supports ambient sound mode, the average pair of headphones does not. 24.9% of headphones support ambient sound mode.
  • EQ customization
    EQ support
    yes
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • Companion app support
    Companion app
    yes
    This pair of headphones works with a companion app, the average pair of headphones does not. 21.6% of headphones support companion apps.
  • Wear detection
    In/on-ear detection
    yes
    This pair of headphones supports wear detection, the average pair of headphones does not. 8.6% of headphones support in/on-ear detection.
  • 8 newer release date
    Release date
    2024
    This pair of headphones was released more recently than the average pair of headphones (2024 vs 2016). The average headphones were released in 2016.
    September 2024
    2024 vs 2016
  • 8 mm smaller driver size
    Driver size
    32 mm
    This pair of headphones has smaller driver size than the average pair of headphones (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    32 mm vs 40 mm
  • 0.5 hours longer charging time
    Charging time
    2.5 hours
    This pair of headphones has a higher charging time than the average pair of headphones (2.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    2.5 hours vs 2 hours
  • 50 ms higher audio latency
    Audio latency
    200 ms
    This pair of headphones has a higher audio latency than the average pair of headphones (200 ms vs 150 ms). The average headphones have audio latency of 150 ms.
    200 ms vs 150 ms
  • 2 Hz weaker bass extension
    Lowest frequency
    20 Hz
    This pair of headphones has a higher lowest frequency than the average pair of headphones (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    20 Hz vs 18 Hz
  • 14.7% higher weight
    Weight
    250 g
    This pair of headphones is heavier than the average pair of headphones (250 g vs 218 g). The average pair of headphones weighs 218 g.
    250 g vs 218 g
  • 3.44x more expensive
    Marshall Monitor III is more expensive than the average pair of headphones (£310 vs £90).
    £310 vs £90
  • No neodymium magnet
    Neodymium magnet
    no
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 13.8% lower battery capacity
    Battery capacity
    500 mAh
    This pair of headphones has a lower battery capacity than the average pair of headphones (500 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    500 mAh vs 580 mAh
  • 3.44x more expensive
    Marshall Monitor III is more expensive than the average pair of headphones (£310 vs £90).
    £310 vs £90
  • 14.7% higher weight
    Weight
    250 g
    This pair of headphones is heavier than the average pair of headphones (250 g vs 218 g). The average pair of headphones weighs 218 g.
    250 g vs 218 g
  • 8 mm smaller driver size
    Driver size
    32 mm
    This pair of headphones has smaller driver size than the average pair of headphones (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    32 mm vs 40 mm
  • 2 Hz weaker bass extension
    Lowest frequency
    20 Hz
    This pair of headphones has a higher lowest frequency than the average pair of headphones (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    20 Hz vs 18 Hz
  • No neodymium magnet
    Neodymium magnet
    no
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 0.5 hours longer charging time
    Charging time
    2.5 hours
    This pair of headphones has a higher charging time than the average pair of headphones (2.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    2.5 hours vs 2 hours
  • 13.8% lower battery capacity
    Battery capacity
    500 mAh
    This pair of headphones has a lower battery capacity than the average pair of headphones (500 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    500 mAh vs 580 mAh
  • 50 ms higher audio latency
    Audio latency
    200 ms
    This pair of headphones has a higher audio latency than the average pair of headphones (200 ms vs 150 ms). The average headphones have audio latency of 150 ms.
    200 ms vs 150 ms

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09/01/2026
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Third-party reviews

Based on 1,520 buyer reviews from online shops.
Reviews last updated: June 2026 · How we calculate this

What we like about Marshall Monitor III

  • Exceptional battery life, offering up to 70 hours with ANC and 100 hours without
  • Iconic, lightweight design with soft, high-quality leatherette and gold accents
  • Incredibly comfortable for long sessions, even for users with glasses or piercings
  • Highly portable and durable with a robust folding mechanism and a compact, premium hard case
  • Intuitive physical controls featuring a multi-directional gold joystick and customizable buttons
  • Solid sound performance, particularly suited for rock, pop, and vocal-heavy genres
  • Useful app features including a 5-band EQ, spatial 'Soundstage' mode, and battery preservation tools

What we don't like about Marshall Monitor III

  • Active Noise Cancellation (ANC) is decent but falls short of flagship competitors like Bose and Sony
  • Transparency mode can introduce a noticeable background hiss or static
  • Bass response may feel under-emphasized or 'polite' for listeners who prefer deep, thumping lows
  • Missing a standard 3.5mm jack; wired listening requires a USB-C adapter and the headphones must be powered on
  • Lacks support for high-resolution Bluetooth codecs (limited to SBC and AAC)
  • Some users report heat and moisture buildup around the ears during extended wear
  • Microphone performance can struggle with vocal clarity in loud or windy environments

Verdict

The Marshall Monitor III A.N.C. are lightweight (250g) over-ear headphones featuring 32mm dynamic drivers, Bluetooth 5.3 with LE Audio/Auracast support, and a frequency response of 20Hz–20kHz. Its standout characteristics include an industry-leading battery life of up to 70 hours with active noise cancellation (ANC) and 100 hours without, along with a rugged, foldable design and a customizable 'M-button'. Major pros are the extreme portability, class-leading stamina, and tactile control knob, though cons include the lack of high-res codecs (LDAC/aptX), noise cancellation that trails behind top-tier rivals like Bose or Sony, and the requirement for the headphones to be powered on even when used with a wired connection.

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