Scored using Headphones Methodology v1.0
Headphones Methodology v1.0
Mathematical & Unbiased Scoring
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.
Explore Headphones Methodology v1.0

SoundMAGIC PL21 Review | 93 Data compared

Avg. price:~£20Form factor:in-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):yes

SoundMAGIC PL21 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

6.4

Overall score

Score
6.4/ 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%

6.2

Technical score

20%

7.1

User score

â–²Better than 60% of headphones
6.2

Technical score

Technical score
6.2/ 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%

7.6

Sound

20%

4.0

Features

10%

7.2

Design

8%

4.6

Connectivity

6%

4.0

Battery

4%

3.9

Calls & Controls

â–²Better than 65% of headphones
7.1

User score

User score
7.1/ 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%

7.2

User ratings

30%

6.7

Number of reviews

Based on 500 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–¼Worse than 84% of headphones
  • soundmagic-pl21
soundmagic-pl21

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Best rankings

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Technical Specifications of pair of headphones SoundMAGIC PL21

Technical score
Technical score
6.2/ 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%

7.6

Sound

20%

4.0

Features

10%

7.2

Design

8%

4.6

Connectivity

6%

4.0

Battery

4%

3.9

Calls & Controls

6.2
User score
User score
7.1/ 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%

7.2

User ratings

30%

6.7

Number of reviews

Based on 500 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.
7.1
Popularity
Popularity
6.7/ 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:
SoundMAGIC PL21 has a popularity score of 6.7 points, which is higher than that of 60.3% of products in this category.
6.7
Value for money
Value for money
7.5/ 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%

6.4

Overall score

40%

10

Price

7.5
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
9 mm
Driver size
9 mm
This pair of headphones uses a driver size of 9 mm, smaller driver size than 92.3% of headphones and equal to 2.6% 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
15 Hz
Lowest frequency
15 Hz
This pair of headphones reaches a lowest frequency of 15 Hz, lower lowest frequency than 58.3% of headphones and equal to 5.8% of headphones.
Show more
Noise-canceling microphone
no
Noise-canceling microphone
no
This pair of headphones does not support a noise-canceling microphone. 39% of headphones support noise-canceling microphones.
Can be used as a headset
no
Can be used as a headset
no
This pair of headphones is not headset-ready, while 15.1% is. 84.9% of headphones can be used as headsets.
Number of microphones
0
Number of microphones
0
This pair of headphones has 0 microphones, fewer microphones than 73.2% of headphones and equal to 26.9% of headphones.
Boom microphone
yes
Boom microphone
yes
This pair of headphones includes a boom microphone. 86.5% of headphones have a boom microphone.
Microphone SNR
N/A
Show more
Connectivity
wired
Connectivity
wired
This pair of headphones supports wired connectivity, less flexible connectivity than 49.2% of headphones and equal to 50.8% of headphones.
Bluetooth version
N/A
Maximum Bluetooth range
N/A
Audio latency
N/A
Multipoint support
no
Multipoint support
no
This pair of headphones does not support multipoint. 30.6% of headphones support multipoint.
Show more
Ambient sound mode
no
Ambient sound mode
no
This pair of headphones does not offer ambient sound mode. 24.9% of headphones support ambient sound mode.
EQ support
no
EQ support
no
This pair of headphones does not support EQ customization. 23.2% of headphones support EQ.
Companion app
no
Companion app
no
This pair of headphones does not work with a companion app. 21.6% of headphones support companion apps.
Adjustable ANC levels
N/A
Voice assistant support
no
Voice assistant support
no
This pair of headphones does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
Battery life
N/A
Battery life with ANC
N/A
Charging time
N/A
Quick charge
no
Quick charge
no
This pair of headphones does not support quick charging. 33.1% of headphones support quick charge.
Battery capacity
N/A
Show more
Brand name
SoundMAGIC
Form factor
in-ear
Weight
8 g
Weight
8 g
This pair of headphones weighs 8 g, lighter than 97.2% of headphones and equal to 0.7% of headphones.
Acoustic design
closed-back
Clamp force
N/A
Show more

SoundMAGIC PL21 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.
  • 96.3% lower weight
    Weight
    8 g
    This pair of headphones is lighter than the average pair of headphones (8 g vs 218 g). The average pair of headphones weighs 218 g.
    8 g vs 218 g
  • Direct 3.5 mm plug
    Has a 3.5mm male connector
    yes
    This pair of headphones includes a direct 3.5 mm plug, the average pair of headphones does not. 39.8% of headphones have a 3.5 mm male connector.
  • 4.5x cheaper
    SoundMAGIC PL21 is cheaper than the average pair of headphones (£20 vs £90).
    £20 vs £90
  • 3 Hz lower bass extension
    Lowest frequency
    15 Hz
    This pair of headphones has a lower lowest frequency than the average pair of headphones (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    15 Hz vs 18 Hz
  • Water resistance
    Water resistance
    yes
    This pair of headphones is water resistant, the average pair of headphones is not. 20.2% of headphones are water resistant.
  • Boom microphone included
    Boom microphone
    yes
    This pair of headphones includes a boom microphone, the average pair of headphones does not. 13.5% of headphones have a boom microphone.
  • 2,000 Hz higher treble extension
    Highest frequency
    22,000 Hz
    This pair of headphones has a higher highest frequency than the average pair of headphones (22000 Hz vs 20000 Hz). The average headphones reach a highest frequency of 20000 Hz.
    22,000 Hz vs 20,000 Hz
  • 4.5x cheaper
    SoundMAGIC PL21 is cheaper than the average pair of headphones (£20 vs £90).
    £20 vs £90
  • 96.3% lower weight
    Weight
    8 g
    This pair of headphones is lighter than the average pair of headphones (8 g vs 218 g). The average pair of headphones weighs 218 g.
    8 g vs 218 g
  • Water resistance
    Water resistance
    yes
    This pair of headphones is water resistant, the average pair of headphones is not. 20.2% of headphones are water resistant.
  • 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.
  • 3 Hz lower bass extension
    Lowest frequency
    15 Hz
    This pair of headphones has a lower lowest frequency than the average pair of headphones (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    15 Hz vs 18 Hz
  • 2,000 Hz higher treble extension
    Highest frequency
    22,000 Hz
    This pair of headphones has a higher highest frequency than the average pair of headphones (22000 Hz vs 20000 Hz). The average headphones reach a highest frequency of 20000 Hz.
    22,000 Hz vs 20,000 Hz
  • Direct 3.5 mm plug
    Has a 3.5mm male connector
    yes
    This pair of headphones includes a direct 3.5 mm plug, the average pair of headphones does not. 39.8% of headphones have a 3.5 mm male connector.
  • Boom microphone included
    Boom microphone
    yes
    This pair of headphones includes a boom microphone, the average pair of headphones does not. 13.5% of headphones have a boom microphone.
  • 31 mm smaller driver size
    Driver size
    9 mm
    This pair of headphones has smaller driver size than the average pair of headphones (9 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    9 mm vs 40 mm
  • Non-replaceable earpads
    Replaceable earpads
    no
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • No voice assistant support
    Voice assistant support
    no
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • Fixed cable
    Detachable cable
    no
    This pair of headphones has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • 5 dB/mW lower sensitivity
    Sensitivity
    97 dB/mW
    This pair of headphones has a lower sensitivity than the average pair of headphones (97 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    97 dB/mW vs 102 dB/mW
  • Not headset-ready
    Can be used as a headset
    no
    This pair of headphones is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • No battery indicator
    Battery level indicator
    no
    This pair of headphones does not show battery level clearly, while the average pair of headphones does. 56.3% of headphones have a battery level indicator.
  • 1 fewer microphones
    Number of microphones
    0
    This pair of headphones has fewer microphones than the average pair of headphones (0 vs 1). The average headphones have 1 microphones.
    0 vs 1
  • 13.2% lower user score
    User score
    7.1/ 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
    ▼▼
    <55-66-77-88-99-10
    SoundMAGIC PL21
    the average pair of headphones
    SoundMAGIC PL21 has a lower user score than the average pair of headphones (7.07 vs 8.000).
    7.07 vs 8
  • Non-replaceable earpads
    Replaceable earpads
    no
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • Fixed cable
    Detachable cable
    no
    This pair of headphones has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • 31 mm smaller driver size
    Driver size
    9 mm
    This pair of headphones has smaller driver size than the average pair of headphones (9 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    9 mm vs 40 mm
  • 5 dB/mW lower sensitivity
    Sensitivity
    97 dB/mW
    This pair of headphones has a lower sensitivity than the average pair of headphones (97 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    97 dB/mW vs 102 dB/mW
  • 1.5 dB looser channel balance
    Channel balance tolerance
    2.0 dB
    This pair of headphones has a higher channel balance tolerance than the average pair of headphones (2 dB vs 0.5 dB). The average headphones have channel balance tolerance of 0.5 dB.
    2.0 dB vs 0.5 dB
  • 6 dB SPL lower sound pressure level
    Sound pressure level
    97 dB SPL
    This pair of headphones has a lower sound pressure level than the average pair of headphones (97 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    97 dB SPL vs 103 dB SPL
  • No battery indicator
    Battery level indicator
    no
    This pair of headphones does not show battery level clearly, while the average pair of headphones does. 56.3% of headphones have a battery level indicator.
  • Not headset-ready
    Can be used as a headset
    no
    This pair of headphones is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • 1 fewer microphones
    Number of microphones
    0
    This pair of headphones has fewer microphones than the average pair of headphones (0 vs 1). The average headphones have 1 microphones.
    0 vs 1
  • No voice assistant support
    Voice assistant support
    no
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • 7 older release date
    Release date
    2009
    This pair of headphones was released earlier than the average pair of headphones (2009 vs 2016). The average headphones were released in 2016.
    September 2009
    2009 vs 2016

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

T
techenclave.com
31/05/2010
Summary of the review
F
firstpost.com
16/04/2010
Summary of the review
T
techenclave.com
04/04/2010
Summary of the review
T
theheadphonelist.com
05/06/2013
Summary of the review
T
tweakers.net
N/A
Summary of the review

Third-party reviews

Based on 500 buyer reviews from online shops.
Reviews last updated: June 2026 · How we calculate this

What we like about SoundMAGIC PL21

  • Exceptional value for money in the budget price range
  • Balanced and clear sound quality with good instrument separation
  • Deep and punchy bass that does not overwhelm mids or treble
  • Highly comfortable for long-term wear with a lightweight design
  • Effective passive noise isolation from included silicone and foam tips
  • Comes with a good variety of accessories, including a soft carrying case and shirt clip

What we don't like about SoundMAGIC PL21

  • Poor long-term durability, specifically reports of the left earbud failing
  • Build quality feels average or 'shabby' due to lightweight plastic construction
  • Thin and fragile cable that may be prone to breaking or tangling
  • Recessed mid-range and lack of high-frequency 'sparkle' for detailed listening
  • Stock silicone tips are very thin and may slip out during physical activity
  • Microphonics (cable noise) is present when worn in a standard straight-down style

Verdict

The SoundMAGIC PL21 is an entry-level in-ear monitor featuring 9mm neodymium dynamic drivers that deliver a wide frequency response of 15Hz to 22,000Hz. Designed for efficiency, these earphones have a low impedance of 12 Ohms and a sensitivity of 97dB, making them exceptionally easy to drive from standard smartphones via their 1.2m gold-plated 3.5mm cable. Main characteristics include a lightweight 8g build and a sound signature often described as lively and well-balanced with a slightly boosted mid-bass for extra punch. Pros include its excellent price-to-performance ratio, comfortable fit with multiple silicone tip sizes, and effective passive noise isolation reaching up to -20dB. However, some users have noted cons such as a slightly muddy bass response that lacks extreme sub-bass depth, a fragile cable prone to tangling, and a build quality that may not withstand heavy daily wear over long periods.

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