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Panasonic RB M300b Review | 93 Data compared

Avg. price: ~£55
Form factor: over-ear
Connectivity: wireless
Battery life: 50 hours
Active noise cancellation (ANC): yes

Panasonic RB M300b review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

6.1

Good

5.4

Good

8.8

Excellent

6.2
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%
8.3
Battery life
7.1
Travel
Score components:
28.0%
10
Active noise cancellation (ANC)
24.0%
8.3
Battery life
18.0%
3.3
Weight
16.0%
10
Multipoint support
14.0%
1.0
Ambient sound mode
5.9
Calls
Score components:
28.0%
1.0
Noise-canceling microphone
24.0%
10
Can be used as a headset
18.0%
10
Multipoint support
16.0%
8.3
Battery life
14.0%
1.0
Companion app
4.5
Workout
Score components:
28.0%
3.3
Weight
24.0%
1.0
Water resistance
20.0%
4.0
IP rating
16.0%
8.3
Battery life
12.0%
10
Can be used as a headset

Best prices in UK

Best rankings

#220 in Best Cheap Bluetooth Wireless Headphones
#329 in Best USB-C Headphones
#347 in Best Noise Cancelling Over Ear Headphones
#361 in Best Wireless Headphones for TV for Seniors
#362 in Best Wireless Over-Ear Headphones
#390 in Best Over Ear Headphones
#434 in Best Noise Cancelling Headphones
#437 in Best Wireless Headphones
#506 in Best Headphones with Mic

Verdict

The Panasonic RB-M300B is a wireless over-ear headphone featuring 40mm Neodymium Free Edge drivers and XBS DEEP (Extra Bass System Deep) technology designed for powerful, low-frequency performance. Main characteristics include a dedicated Bass Enhancer button for amplified low-end clarity, Bluetooth 5.0 connectivity with a 10-meter range, and an impressive battery life of up to 50 hours of continuous playback on a 4-hour charge. Its primary pros are the exceptional comfort provided by Side Pressure Dispersion Technology and soft-cushioned ear pads, as well as a quick-charge feature that offers 3 hours of listening from a 15-minute charge. However, notable cons include the lack of active noise cancellation (ANC), the absence of a carrying case in the box, and a bulky design that may not be suitable for high-intensity physical activities.

Technical Specifications of Panasonic RB M300b

Overall score

6.1

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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.

Sound

5.9

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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

Driver type

What it is: Type of speaker driver technology used

When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

dynamic

Driver size

What it is: Diameter of the speaker driver unit

When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

Number of drivers

What it is: Total number of speaker drivers per earcup

When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

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

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Calls & Controls

4.9

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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

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

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

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

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

5.3

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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

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

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

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

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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

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Features

3.8

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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

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

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

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Battery

6.0

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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

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

Quick charge

What it is: Provides quick playback time with short charging period

When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

Battery capacity

What it is: Total energy storage of the internal battery

When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

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Design

6.0

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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

Panasonic

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

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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Panasonic RB M300b vs the average headphone

Why is Panasonic RB M300b better than the average headphone?

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Active noise cancellation
Panasonic RB M300b 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
Panasonic RB M300b supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
EQ customization
Panasonic RB M300b 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
Panasonic RB M300b supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
More flexible connectivity
Panasonic RB M300b 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
Panasonic RB M300b offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
On-device controls
Panasonic RB M300b 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
Panasonic RB M300b includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
20 hours longer battery life
Panasonic RB M300b has a higher battery life than the average headphone (50 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
Panasonic RB M300b has a higher battery life than the average headphone (50 hours vs 30 hours). The average headphones offer battery life of 30 hours.50 hours vs 30 hours
USB-C charging
Panasonic RB M300b uses USB-C charging, the average headphone does not. 29.4% of headphones use USB Type-C.
What it is: Uses USB-C connector for charging or data
When it matters: When you want to charge with the same cable family used by your phone, tablet, laptop, or other daily devices.
Importance: LOW
Panasonic RB M300b uses USB-C charging, the average headphone does not. 29.4% of headphones use USB Type-C.
33.3% higher battery capacity
Panasonic RB M300b has a higher battery capacity than the average headphone (800 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
Panasonic RB M300b has a higher battery capacity than the average headphone (800 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.800 mAh vs 600 mAh
Rechargeable battery
Panasonic RB M300b 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
Panasonic RB M300b has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
Active noise cancellation
Panasonic RB M300b supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
10x higher input power handling
Panasonic RB M300b 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.
20 hours longer battery life
Panasonic RB M300b has a higher battery life than the average headphone (50 hours vs 30 hours). The average headphones offer battery life of 30 hours.
USB-C charging
Panasonic RB M300b uses USB-C charging, the average headphone does not. 29.4% of headphones use USB Type-C.
33.3% higher battery capacity
Panasonic RB M300b has a higher battery capacity than the average headphone (800 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
Rechargeable battery
Panasonic RB M300b has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
More flexible connectivity
Panasonic RB M300b offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
On-device controls
Panasonic RB M300b includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
EQ customization
Panasonic RB M300b supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.

Calls & Controls

Why is Panasonic RB M300b worse than the average headphone?

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35.8% higher weight
Panasonic RB M300b is heavier than the average headphone (296 g vs 218 g). The average pair of headphones weighs 218 g.
Tangle-prone cable
Panasonic RB M300b 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
Panasonic RB M300b does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
No passive noise reduction
Panasonic RB M300b does not offer passive noise reduction, while the average headphone does. 82.7% of headphones have passive noise reduction.
2 Hz weaker bass extension
Panasonic RB M300b has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
2 dB/mW lower sensitivity
Panasonic RB M300b has a lower sensitivity than the average headphone (100 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
2 hours longer charging time
Panasonic RB M300b has a higher charging time than the average headphone (4 hours vs 2 hours). The average headphones need 2 hours to charge.
No passive noise reduction
Panasonic RB M300b does not offer passive noise reduction, while the average headphone does. 82.7% 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: MEDIUM
Panasonic RB M300b does not offer passive noise reduction, while the average headphone does. 82.7% of headphones have passive noise reduction.
2 hours longer charging time
Panasonic RB M300b has a higher charging time than the average headphone (4 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
Panasonic RB M300b has a higher charging time than the average headphone (4 hours vs 2 hours). The average headphones need 2 hours to charge.4 hours vs 2 hours
35.8% higher weight
Panasonic RB M300b is heavier than the average headphone (296 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
Panasonic RB M300b is heavier than the average headphone (296 g vs 218 g). The average pair of headphones weighs 218 g.296 g vs 218 g
2 Hz weaker bass extension
Panasonic RB M300b 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
Panasonic RB M300b 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
Tangle-prone cable
Panasonic RB M300b 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
Panasonic RB M300b 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
Panasonic RB M300b 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
Panasonic RB M300b does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
2 dB/mW lower sensitivity
Panasonic RB M300b has a lower sensitivity than the average headphone (100 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
Panasonic RB M300b has a lower sensitivity than the average headphone (100 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.100 dB/mW vs 102 dB/mW

Graphic comparison of Panasonic RB M300b and

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Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

What customers like about Panasonic RB M300b?

Powerful and punchy bass, further enhanced by a dedicated XBS DEEP bass-boost switch
Exceptional battery life, providing up to 50 hours of playback on a single charge
High level of comfort for long-term use due to well-padded, soft ear cups
Excellent value for money, frequently praised as a high-quality budget option
Versatile connectivity options, supporting both Bluetooth 5.0 and a 3.5mm wired connection
Useful quick-charge feature, offering 3 hours of playback from a 15-minute charge
Effective passive noise isolation despite lacking active noise cancellation

What customers dislike about Panasonic RB M300b?

Lack of Active Noise Cancellation (ANC), which limits performance in very loud environments
Controls can be difficult to use, with small, non-intuitive buttons clustered closely together
Bulky design that does not fold, making them less portable for travel
Potential durability issues, specifically regarding the plastic hinges over long-term use
No storage case or protective pouch included in the package
Large size can make them feel heavy or too warm for some users during extended wear
Sound can become 'muddy' or lose clarity in higher frequencies when bass is at maximum

Expert reviews

taenk.dk

01/07/2026

Review: Panasonic RB-M300B headphones | Forbrugerrådet Tænk

The Panasonic RB-M300B is a 290-gram, on/over-ear wireless headphone model tested in November 2024, found at a retail price of 576 Kr. It features Bluetooth 5 connectivity, supports the AAC audio format, and scored a 35% overall rating, placing it on the lower end of the 147 products compared in its testing category. The headphones offer automated power-saving utility by turning off...Read more

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