OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Headphones Methodology v1.0
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Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Headphones Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Sync By 50 Over Ear Review | 93 Data compared

Avg. price:~£160Form factor:over-earConnectivity:wirelessBattery life:17 hoursActive noise cancellation (ANC):no

Sync By 50 Over Ear Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

Sync By 50 Over Ear
6.2/10

Overall score

Score
6.2/ 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
â–¼ Worse than 51% of models
Score components

80%

6.0

Technical score

20%

7.1

User score

â–¼Worse than 51% of headphones
7.2

Value for money

Value for money
7.2/ 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
â–¼ Worse than 59% of models
Score components

70%

6.2

Overall score

30%

9.7

Price

â–¼Worse than 59%
6.0

Technical score

Technical score
6.0/ 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
â–² Better than 54% of models
Score components

52%

6.2

Sound

20%

5.0

Features

10%

6.4

Design

8%

6.2

Connectivity

6%

4.1

Battery

4%

9.0

Calls & Controls

â–²Better than 54%
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
â–¼ Worse than 84% of models
Score components

70%

7.8

User ratings

30%

5.4

Number of reviews

Based on ratings from across the web.
â–¼Worse than 84%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of pair of headphones Sync By 50 Over Ear

Technical score
Technical score
6.0/ 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
â–² Better than 54% of models
Score components:

52%

6.2

Sound

20%

5.0

Features

10%

6.4

Design

8%

6.2

Connectivity

6%

4.1

Battery

4%

9.0

Calls & Controls

6.0
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
â–¼ Worse than 84% of models
Score components

70%

7.8

User ratings

30%

5.4

Number of reviews

Based on ratings from across the web.
7.1
Popularity
Popularity
5.4/ 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
â–¼ Worse than 55% of models
Popularity:
Sync By 50 Over Ear has a popularity score of 5.4 points, which is lower than that of 54.1% of products in this category.
5.4
Value for money
Value for money
7.2/ 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
â–¼ Worse than 59% of models
Score components:

70%

6.2

Overall score

30%

9.7

Price

7.2
Active noise cancellation (ANC)
no
This pair of headphones does not support active noise cancellation. 27.5% of headphones support active noise cancellation.
Driver type
dynamic
Driver size
40 mm
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 40 mm, larger driver size than 28.6% of headphones and equal to 53.3% of headphones.
Number of drivers
1
Market range: <1 – >4
This pair of headphones uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% of headphones.
Lowest frequency
?
Show more
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
This pair of headphones is headset-ready, 84.8% is not. 15.2% of headphones can be used as headsets.
Number of microphones
1
Market range: <0 – >4
This pair of headphones has 1 microphones, more microphones than 26.9% of headphones and equal to 50.9% of headphones.
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
This pair of headphones supports wireless connectivity, more flexible connectivity than 50.8% of headphones and equal to 49.2% of headphones.
Bluetooth version
N/A
Maximum Bluetooth range
N/A
Audio latency
?
Multipoint support
no
This pair of headphones does not support multipoint. 30.6% of headphones support multipoint.
Show more
Ambient sound mode
no
This pair of headphones does not offer ambient sound mode. 24.9% of headphones support ambient sound mode.
EQ support
yes
This pair of headphones supports EQ customization. 76.8% of headphones support EQ.
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
This pair of headphones does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
Battery life
17 hours
Market range: <10 hours – >70 hours
This pair of headphones offers battery life of 17 hours, lower battery life than 76% of headphones and equal to 0.8% of headphones.
Battery life with ANC
N/A
Charging time
4 hours
Market range: <1.5 hours – >3.5 hours
This pair of headphones needs 4 hours to charge, higher charging time than 90.6% of headphones and equal to 4.6% of headphones.
Quick charge
yes
This pair of headphones supports quick charge. 67% of headphones support quick charge.
Battery capacity
?
Show more
Brand name
Sync
Form factor
over-ear
Weight
317 g
Market range: <14 g – >340 g
This pair of headphones weighs 317 g, heavier than 84.6% of headphones and equal to 0.1% of headphones.
Acoustic design
closed-back
Clamp force
?
Show more

Sync By 50 Over Ear vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • EQ customization
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • More flexible connectivity
    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
  • Clear call microphone
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • Quick charge support
    This pair of headphones supports quick charge, the average pair of headphones does not. 33% of headphones support quick charge.
  • AptX Lossless support
    This pair of headphones supports aptX Lossless, the average pair of headphones does not. 4.8% of headphones support aptX Lossless.
  • On-device controls
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • In-line controls
    This pair of headphones includes in-line controls, the average pair of headphones does not. 36.6% of headphones support in-line controls.
  • Dongle included
    This pair of headphones includes a dongle, the average pair of headphones does not. 4.6% of headphones include a dongle.
  • Foldable design
    This pair of headphones has a foldable design, the average pair of headphones does not. 48.3% of headphones are foldable.
  • Water resistance
    This pair of headphones is water resistant, the average pair of headphones is not. 20.2% of headphones are water resistant.
  • 4,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (24,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    24,000 Hz vs 20,000 Hz
  • Quick charge support
    This pair of headphones supports quick charge, the average pair of headphones does not. 33% of headphones support quick charge.
  • Rechargeable battery
    This pair of headphones has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • More flexible connectivity
    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
  • AptX Lossless support
    This pair of headphones supports aptX Lossless, the average pair of headphones does not. 4.8% of headphones support aptX Lossless.
  • Dongle included
    This pair of headphones includes a dongle, the average pair of headphones does not. 4.6% of headphones include a dongle.
  • AptX support
    This pair of headphones supports aptX, the average pair of headphones does not. 18.4% of headphones support aptX.
  • Low-latency game mode
    This pair of headphones includes a low-latency game mode, the average pair of headphones does not. 21.2% of headphones support low-latency game mode.
  • Clear call microphone
    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
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • In-line controls
    This pair of headphones includes in-line controls, the average pair of headphones does not. 36.6% of headphones support in-line controls.
  • Sidetone support
    This pair of headphones supports sidetone, the average pair of headphones does not. 25.3% of headphones support sidetone.
  • Quick mic mute
    This pair of headphones includes a quick mic mute, the average pair of headphones does not. 29.3% of headphones support a mute function.
  • EQ customization
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • 2 hours longer charging time
    This pair of headphones has a higher charging time than the average pair of headphones (4 hours vs 2 hours). The average headphones need 2 hours to charge.
    4 hours vs 2 hours
  • 45.4% higher weight
    This pair of headphones is heavier than the average pair of headphones (317 g vs 218 g). The average pair of headphones weighs 218 g.
    317 g vs 218 g
  • No voice assistant support
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • 0.7 % higher distortion
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    1 % vs 0.3 %
  • 7 dB/mW lower sensitivity
    This pair of headphones has a lower sensitivity than the average pair of headphones (95 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    95 dB/mW vs 102 dB/mW
  • 13 hours shorter battery life
    This pair of headphones has a lower battery life than the average pair of headphones (17 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    17 hours vs 30 hours
  • 13% 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
    Sync By 50 Over Ear
    the average pair of headphones
    Sync By 50 Over Ear has a lower user score than the average pair of headphones (7.08 vs 8).
    7.08 vs 8
  • 77.8% more expensive
    Sync By 50 Over Ear is more expensive than the average pair of headphones (£160 vs £90).
    £160 vs £90
  • 13% 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
    Sync By 50 Over Ear
    the average pair of headphones
    Sync By 50 Over Ear has a lower user score than the average pair of headphones (7.08 vs 8).
    7.08 vs 8
  • 77.8% more expensive
    Sync By 50 Over Ear is more expensive than the average pair of headphones (£160 vs £90).
    £160 vs £90
  • 45.4% higher weight
    This pair of headphones is heavier than the average pair of headphones (317 g vs 218 g). The average pair of headphones weighs 218 g.
    317 g vs 218 g
  • 0.7 % higher distortion
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    1 % vs 0.3 %
  • 7 dB/mW lower sensitivity
    This pair of headphones has a lower sensitivity than the average pair of headphones (95 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    95 dB/mW vs 102 dB/mW
  • 2 hours longer charging time
    This pair of headphones has a higher charging time than the average pair of headphones (4 hours vs 2 hours). The average headphones need 2 hours to charge.
    4 hours vs 2 hours
  • 13 hours shorter battery life
    This pair of headphones has a lower battery life than the average pair of headphones (17 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    17 hours vs 30 hours
  • No voice assistant support
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • 4 older release date
    This pair of headphones was released earlier than the average pair of headphones (2012 vs 2016). The average headphones were released in 2016.
    March 2012
    2012 vs 2016

Video reviews

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

7.0
Blunty
≈ estimated
17/08/2012
Hands-on review · sound, comfort, range and battery tests
Verdict
Sync By 50 Over-Ear offers good sound and comfort, but the price is hard to justify.
8.0
Soldier Knows Best
≈ estimated
07/04/2012
Hands-on review · design, controls and sound tests
Verdict
Sync By 50 Over-Ear is recommended for hip-hop fans, though the price does not match the audio performance.
Hands-on video, no verdict
Shop video

Third-party reviews

Based on ratings from across the web.
Reviews last updated: November 2026 · How we calculate this

What customers like about Sync By 50 Over Ear

  • Comfortable design with memory foam ear pads for long listening sessions
  • Balanced sound profile that isn't as bass-heavy as some competitors
  • Includes a high-quality semi-hardshell carrying case and useful accessories
  • Solid battery life, typically lasting between 13 and 17 hours
  • Built-in volume and track controls are convenient and easy to navigate
  • Lossless 16-bit CD-quality audio when used with the Kleer wireless transmitter

What customers don't like about Sync By 50 Over Ear

  • Requires a bulky 3.5mm wireless dongle (Kleer technology) instead of standard Bluetooth
  • Audio distortion can occur at high volumes, especially in wireless mode
  • Passive noise isolation is weak and fails to block out loud city environments
  • Bulky over-ear design uses a lot of plastic, which some feel feels cheap for the price
  • Noticeable blue lights on the earcups flash constantly during use and cannot be turned off
  • High retail price compared to rivals that offer similar or better audio performance

Verdict

The SMS Audio Sync by 50 Over-Ear headphones feature custom 40mm drivers and utilize Kleer wireless technology for lossless, 16-bit uncompressed audio with a 50-foot range, surpassing standard Bluetooth quality from that era. Key characteristics include a 'shatterproof' adjustable headband, soft memory foam ear cushions for passive noise isolation, and a unique ability to sync up to four pairs to a single transmitter. Pros include a powerful, professionally tuned sound with a dedicated 'THUMPP' bass boost mode, up to 17 hours of battery life, and high-impact style. Cons include a bulky design that relies on a 3.5mm wireless dongle for wireless use, a lack of active noise cancellation (ANC), and a largely plastic build that some critics find less refined for its price point.

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