Sennheiser RS 120 II Review | 93 Data compared

Sennheiser RS 120 II Review | 93 Data compared

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  • Avg. price in UK: ~£130
  • Avg. price in US: ~$80
  • Form factor: on-ear
  • Connectivity: wireless
  • Battery life: 20 hours
  • Active noise cancellation (ANC): no

Sennheiser RS 120 II review. Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

5.6

Overall score

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

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

Score components:

80.0%

4.8

Technical Score

20.0%

8.6

User score

Good
4.8

Technical Score

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 components:

52.0%

4.6

Sound

20.0%

4.0

Features

10.0%

6.2

Design

8.0%

6.6

Connectivity

6.0%

4.3

Battery

4.0%

4.7

Calls & Controls

Poor
8.6

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%

8.3

User reviews

30.0%

9.3

Popularity

User score:
United Kingdom
amazon
4.1
(2481)
amazon
4.2
(912)
United States
Amazon_logo.png
4.1
(2481)
Amazon_logo.png
4.2
(912)

(Reviews last updated: June 2026)

Excellent
  • 7.2
    Gaming

    Score components:

    35.0%

    ?

    Audio latency

    25.0%

    10

    Low-latency game mode

    20.0%

    4.0

    Can be used as a headset

    12.0%

    4.0

    Noise-canceling microphone

    8.0%

    ?

    Battery life

  • 5.7
    Travel

    Score components:

    28.0%

    4.0

    Active noise cancellation (ANC)

    24.0%

    ?

    Battery life

    18.0%

    ?

    Weight

    16.0%

    4.0

    Multipoint support

    14.0%

    4.0

    Ambient sound mode

  • 4.6
    Calls

    Score components:

    28.0%

    4.0

    Noise-canceling microphone

    24.0%

    4.0

    Can be used as a headset

    18.0%

    4.0

    Multipoint support

    16.0%

    ?

    Battery life

    14.0%

    4.0

    Companion app

  • 6.6
    Workout

    Score components:

    28.0%

    ?

    Weight

    24.0%

    4.0

    Water resistance

    20.0%

    ?

    IP rating

    16.0%

    ?

    Battery life

    12.0%

    4.0

    Can be used as a headset

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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 RS 120 II is an open-back, supra-aural wireless RF headphone system designed primarily for high-fidelity TV and music listening. It features a frequency response of 22 Hz to 19,500 Hz, an impedance of 24 Ohms, and a maximum sound pressure level of 106 dB. The system includes a multi-purpose transmitter that doubles as an easy-access charging cradle for the included NiMH AAA batteries, which provide up to 20 hours of operation per charge. Key advantages include its lightweight 230g build for long-term comfort, a broad wireless range of up to 100 metres that functions through walls, and intuitive on-ear controls for volume and tuning. However, notable drawbacks include a persistent low-level background hiss characteristic of analog RF transmission, the requirement of manual frequency tuning to avoid interference, and a loose fit that may cause the headset to slip if the user tilts their head.

Technical Specifications of pair of headphones Sennheiser RS 120 II

Technical Score

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 components:

52.0%

4.6

Sound

20.0%

4.0

Features

10.0%

6.2

Design

8.0%

6.6

Connectivity

6.0%

4.3

Battery

4.0%

4.7

Calls & Controls

4.8
Sennheiser RS 120 II has a technical score of 4.81 points, which is lower than that of 96.2% 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%

8.3

User reviews

30.0%

9.3

Popularity

User score:
United Kingdom
amazon
4.1
(2481)
amazon
4.2
(912)
United States
Amazon_logo.png
4.1
(2481)
Amazon_logo.png
4.2
(912)

(Reviews last updated: June 2026)

8.6
Sennheiser RS 120 II has a user score of 8.58 points, which is higher than that of 83.4% 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.
9.3
Sennheiser RS 120 II has a popularity of 9.3 points, which is higher than 87.7% 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%

5.6

Overall score

40.0%

9.8

Price

6.8
Sennheiser RS 120 II has a quality-to-price ratio of 6.8 points, which is lower than 79.3% of products in this category.
Active noise cancellation (ANC)
What it is: Reduces background noise using active technology
When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

no
Sennheiser RS 120 II does not support active noise cancellation. 27.5% 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: HIGH

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: HIGH

30 mm
Sennheiser RS 120 II uses a driver size of 30 mm, smaller driver size than 77.4% of headphones and equal to 4.3% of headphones.
Number of drivers
What it is: Total number of speaker drivers per earcup
When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

1
Sennheiser RS 120 II uses 1 drivers, fewer drivers than 4% of headphones and 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

22 Hz
Sennheiser RS 120 II reaches a lowest frequency of 22 Hz, higher lowest frequency than 98.2% of headphones and equal to 0.2% 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: LOW

no
Sennheiser RS 120 II does not support a noise-canceling microphone. 39% 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: LOW

no
Sennheiser RS 120 II is not headset-ready, while 15.1% is. 84.9% 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
Sennheiser RS 120 II has 0 microphones, fewer microphones than 73.2% of headphones and equal to 26.9% 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
Sennheiser RS 120 II does not include a boom microphone. 13.5% 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: LOW

wireless
Sennheiser RS 120 II supports wireless connectivity, more flexible connectivity than 50.8% of headphones and equal to 49.2% of headphones.
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: LOW

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: MEDIUM

Good value: <60 ms

40 ms
Sennheiser RS 120 II has audio latency of 40 ms, lower audio latency than 77.2% of headphones and equal to 14.6% 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: LOW

no
Sennheiser RS 120 II does not support multipoint. 30.6% 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

no
Sennheiser RS 120 II does not offer ambient sound mode. 24.9% 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 RS 120 II does not support EQ customization. 23.2% 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 RS 120 II does not work with a companion app. 21.6% 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: HIGH

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
Sennheiser RS 120 II 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: LOW

Good value: >45 hours

20 hours
Sennheiser RS 120 II offers battery life of 20 hours, lower battery life than 65.1% of headphones and equal to 8.3% 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: LOW

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: LOW

Good value: <=2 hours

24 hours
Sennheiser RS 120 II needs 24 hours to charge, higher charging time than 99.9% of headphones and equal to 0.1% of headphones.
Quick charge
What it is: Provides quick playback time with short charging period
When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: LOW

?
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: LOW

Good value: >=720 mAh

1,200 mAh
Sennheiser RS 120 II has a battery capacity of 1,200 mAh, higher battery capacity than 94.6% of headphones and equal to 2.8% 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: LOW

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: LOW

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

Importance: HIGH

Good value: <150 g

230 g
Sennheiser RS 120 II weighs 230 g, heavier than 53.6% of headphones and equal to 1.2% 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: LOW

open-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: LOW

?
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Sennheiser RS 120 II vs the average pair of headphones

  • 110 ms lower audio latency
    Sennheiser RS 120 II has a lower audio latency than the average pair of headphones (40 ms vs 150 ms). The average headphones have audio latency of 150 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: MEDIUM

    Good value: <60 ms

    Sennheiser RS 120 II has a lower audio latency than the average pair of headphones (40 ms vs 150 ms). The average headphones have audio latency of 150 ms.40 ms vs 150 ms
  • More flexible connectivity
    Sennheiser RS 120 II offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support 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: LOW

    Sennheiser RS 120 II 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
    Sennheiser RS 120 II supports LE Audio, the average pair of headphones does not. 11.6% of headphones support Bluetooth LE Audio.
    What it is: Supports Bluetooth LE Audio for low power and high efficiency
    When it matters: When you want newer Bluetooth features that can improve efficiency, sharing options, and long-term ecosystem support.

    Importance: LOW

    Sennheiser RS 120 II supports LE Audio, the average pair of headphones does not. 11.6% of headphones support Bluetooth LE Audio.
  • AptX Low Latency
    Sennheiser RS 120 II supports aptX Low Latency, the average pair of headphones does not. 8% of headphones support aptX Low Latency.
    What it is: Supports aptX Low Latency codec for reduced lag
    When it matters: When you care about reducing Bluetooth lag during video or gaming.

    Importance: LOW

    Sennheiser RS 120 II supports aptX Low Latency, the average pair of headphones does not. 8% of headphones support aptX Low Latency.
  • On-device controls
    Sennheiser RS 120 II includes on-device controls, the average pair of headphones 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: LOW

    Sennheiser RS 120 II includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 2.07x higher battery capacity
    Sennheiser RS 120 II has a higher battery capacity than the average pair of headphones (1,200 mAh vs 580 mAh). The average headphones have a battery capacity of 580 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: LOW

    Good value: >=720 mAh

    Sennheiser RS 120 II has a higher battery capacity than the average pair of headphones (1,200 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.1200 mAh vs 580 mAh
  • Dongle included
    Sennheiser RS 120 II includes a dongle, the average pair of headphones does not. 4.6% of headphones include a dongle.
    What it is: Comes with a USB or wireless dongle for connectivity
    When it matters: When you want a more reliable low-hassle wireless connection for a PC, console, or work machine without depending only on Bluetooth.

    Importance: LOW

    Sennheiser RS 120 II includes a dongle, the average pair of headphones does not. 4.6% of headphones include a dongle.
  • 4 dB/mW higher sensitivity
    Sennheiser RS 120 II has a higher sensitivity than the average pair of headphones (106 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 RS 120 II has a higher sensitivity than the average pair of headphones (106 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.106 dB/mW vs 102 dB/mW
  • Open-back design
    Sennheiser RS 120 II uses an open-back design, while the average pair of headphones does not. 9.1% of headphones have an open-back design.
  • 4 dB/mW higher sensitivity
    Sennheiser RS 120 II has a higher sensitivity than the average pair of headphones (106 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 2.07x higher battery capacity
    Sennheiser RS 120 II has a higher battery capacity than the average pair of headphones (1,200 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
  • Removable battery
    Sennheiser RS 120 II has a removable battery, the average pair of headphones does not. 7.8% of headphones have a removable battery.
  • Rechargeable battery
    Sennheiser RS 120 II has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • 110 ms lower audio latency
    Sennheiser RS 120 II has a lower audio latency than the average pair of headphones (40 ms vs 150 ms). The average headphones have audio latency of 150 ms.
  • More flexible connectivity
    Sennheiser RS 120 II offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support wired connectivity.
  • LE Audio support
    Sennheiser RS 120 II supports LE Audio, the average pair of headphones does not. 11.6% of headphones support Bluetooth LE Audio.
  • AptX Low Latency
    Sennheiser RS 120 II supports aptX Low Latency, the average pair of headphones does not. 8% of headphones support aptX Low Latency.
  • Dongle included
    Sennheiser RS 120 II includes a dongle, the average pair of headphones does not. 4.6% of headphones include a dongle.
  • Low-latency game mode
    Sennheiser RS 120 II includes a low-latency game mode, the average pair of headphones does not. 21.2% of headphones support low-latency game mode.
  • On-device controls
    Sennheiser RS 120 II includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • Fixed cable
    Sennheiser RS 120 II has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • Tangle-prone cable
    Sennheiser RS 120 II uses a tangle-prone cable, while the average pair of headphones 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
    Sennheiser RS 120 II does not include a travel bag, the average pair of headphones does. 65.4% of headphones include a travel bag.
  • 5.5% higher weight
    Sennheiser RS 120 II is heavier than the average pair of headphones (230 g vs 218 g). The average pair of headphones weighs 218 g.
  • No passive noise reduction
    Sennheiser RS 120 II does not offer passive noise reduction, while the average pair of headphones does. 82.6% of headphones have passive noise reduction.
  • 10 mm smaller driver size
    Sennheiser RS 120 II has smaller driver size than the average pair of headphones (30 mm vs 40 mm). The average headphones use a driver size of 40 mm.
  • 4 Hz weaker bass extension
    Sennheiser RS 120 II has a higher lowest frequency than the average pair of headphones (22 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 0.4 % higher distortion
    Sennheiser RS 120 II has a higher total harmonic distortion than the average pair of headphones (0.7% vs 0.3%). The average headphones have total harmonic distortion of 0.3%.
  • 22 hours longer charging time
    Sennheiser RS 120 II has a higher charging time than the average pair of headphones (24 hours vs 2 hours). The average headphones need 2 hours to charge.
  • 10 hours shorter battery life
    Sennheiser RS 120 II has a lower battery life than the average pair of headphones (20 hours vs 30 hours). The average headphones offer battery life of 30 hours.
  • Not headset-ready
    Sennheiser RS 120 II is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • 1 fewer microphones
    Sennheiser RS 120 II has fewer microphones than the average pair of headphones (0 vs 1). The average headphones have 1 microphones.
  • No voice assistant support
    Sennheiser RS 120 II does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • 4 older release date
    Sennheiser RS 120 II was released earlier than the average pair of headphones (2012 vs 2016). The average headphones were released in 2016.
  • No passive noise reduction
    Sennheiser RS 120 II does not offer passive noise reduction, while the average pair of headphones does. 82.6% of headphones have passive noise reduction.
    What it is: Shows whether the headphones reduce outside noise through physical sealing, fit, and materials rather than active electronics.
    When it matters: When you want better isolation from fit and seal alone, even with ANC turned off or not available.

    Importance: HIGH

    Sennheiser RS 120 II does not offer passive noise reduction, while the average pair of headphones does. 82.6% of headphones have passive noise reduction.
  • 22 hours longer charging time
    Sennheiser RS 120 II has a higher charging time than the average pair of headphones (24 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: LOW

    Good value: <=2 hours

    Sennheiser RS 120 II has a higher charging time than the average pair of headphones (24 hours vs 2 hours). The average headphones need 2 hours to charge.24 hours vs 2 hours
  • 10 mm smaller driver size
    Sennheiser RS 120 II has smaller driver size than the average pair of headphones (30 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    What it is: Diameter of the speaker driver unit
    When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

    Importance: HIGH

    Sennheiser RS 120 II has smaller driver size than the average pair of headphones (30 mm vs 40 mm). The average headphones use a driver size of 40 mm.30 mm vs 40 mm
  • No voice assistant support
    Sennheiser RS 120 II does not support voice assistants, the average pair of headphones 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

    Sennheiser RS 120 II does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • Fixed cable
    Sennheiser RS 120 II has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
    What it is: Cable can be removed or replaced
    When it matters: When you care about easier cable replacement, simpler storage, or the option to swap to shorter, longer, or upgraded leads.

    Importance: LOW

    Sennheiser RS 120 II has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • 4 Hz weaker bass extension
    Sennheiser RS 120 II has a higher lowest frequency than the average pair of headphones (22 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

    Sennheiser RS 120 II has a higher lowest frequency than the average pair of headphones (22 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.22 Hz vs 18 Hz
  • Not headset-ready
    Sennheiser RS 120 II is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
    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: LOW

    Sennheiser RS 120 II is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • 0.4 % higher distortion
    Sennheiser RS 120 II has a higher total harmonic distortion than the average pair of headphones (0.7% 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: MEDIUM

    Good value: <=1%

    Sennheiser RS 120 II has a higher total harmonic distortion than the average pair of headphones (0.7% vs 0.3%). The average headphones have total harmonic distortion of 0.3%.0.7 % vs 0.3 %

Graphic comparison of Sennheiser RS 120 II and other products in the Headphones category

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Third-party reviews

(Reviews last updated: June 2026)

What customers like about Sennheiser RS 120 II?

  • Lightweight and comfortable for long-duration TV watching
  • Excellent wireless range that works through walls and across multiple floors
  • Detailed and clear sound reproduction, particularly well-suited for dialogue
  • Simple setup and intuitive volume/tuning controls on the earcup
  • Convenient charging cradle that doubles as a storage stand
  • User-replaceable standard AAA rechargeable batteries extend product lifespan

What customers dislike about Sennheiser RS 120 II?

  • Susceptible to RF interference and background static hiss
  • Manual tuning wheel can be finicky to find the clearest signal
  • Blasts loud static if the transmitter auto-shuts off due to low audio signal
  • Lacks deep bass response compared to higher-end or wired models
  • Loose fit can cause them to slide off if the user bends down
  • Build quality feels somewhat plasticky or flimsy to some users

Expert reviews

K
kenrockwell.com
01/09/2014
Summary of the review
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sonntagmorgen.com
30/09/2026
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M
mein-test.org
24/05/2022
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quechoisir.org
23/11/2023
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lesnumeriques.com
22/01/2007
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robadainformatici.it
28/03/2026
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C
cuffiewireless.it
21/02/2018
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