OVERALL

SPECS

VS AVERAGE

REVIEWS

ALTERNATIVES

Klim Fusion Review | 93 Data compared

Avg. price in UK: ~£20
Avg. price in US: ~$20
Form factor: in-ear
Connectivity: wired
Battery life: N/A hours
Active noise cancellation (ANC): no

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

6.0

Good

5.3

Good

8.7

Excellent

8.2
Gaming
Score components:
35.0%
7.9
Audio latency
25.0%
9.0
Low-latency game mode
20.0%
10
Can be used as a headset
12.0%
10
Noise-canceling microphone
8.0%
0.0
Battery life
2.1
Travel
Score components:
28.0%
1.0
Active noise cancellation (ANC)
24.0%
0.0
Battery life
18.0%
10
Weight
16.0%
0.0
Multipoint support
14.0%
0.0
Ambient sound mode
5.2
Calls
Score components:
28.0%
10
Noise-canceling microphone
24.0%
10
Can be used as a headset
18.0%
0.0
Multipoint support
16.0%
0.0
Battery life
14.0%
0.0
Companion app
6.0
Workout
Score components:
28.0%
10
Weight
24.0%
1.0
Water resistance
20.0%
9.0
IP rating
16.0%
0.0
Battery life
12.0%
10
Can be used as a headset

Best prices in UK

Best rankings

Verdict

The KLIM Fusion is a durable, wired in-ear headset featuring 9 mm dynamic drivers that deliver a frequency range of 15 Hz to 21,000 Hz with a sensitivity of 118 dB and a low 16-ohm impedance for easy driving. Its main characteristics include high-quality metal construction, magnetic earbuds for tangle-free storage around the neck, and innovative memory foam tips that provide exceptional passive noise isolation and a personalized fit. Pros include a generous 5-year warranty, supreme comfort for long sessions, and a versatile in-line microphone with volume control compatible with PCs and mobile devices. However, some users have noted cons such as a slightly bass-heavy sound profile, a relatively basic microphone unsuitable for professional recording, and occasional long-term durability concerns regarding the audio jack or carrying case zipper.

Technical Specifications of Klim Fusion

Overall score

6.0

Show more

Hide

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

4.3

Show more

Hide

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

Show more

Calls & Controls

7.6

Show more

Hide

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

?

Show more

Connectivity

7.6

Show more

Hide

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

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: HIGH

Good value: <60 ms

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

N/A

Show more

Features

4.1

Show more

Hide

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

N/A

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

N/A

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

Show more

Battery

9.5

Show more

Hide

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

N/A

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

N/A

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

N/A

Show more

Design

8.3

Show more

Hide

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

Klim

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

in-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

N/A

Show more

Klim Fusion vs the average headphone

Why is Klim Fusion better than the average headphone?

Show more

Hide

90.8% lower weight
Klim Fusion is lighter than the average headphone (20 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
Klim Fusion is lighter than the average headphone (20 g vs 218 g). The average pair of headphones weighs 218 g.20 g vs 218 g
Clear call microphone
Klim Fusion offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
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
Klim Fusion offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
Direct 3.5 mm plug
Klim Fusion includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
What it is: Shows whether the headphones end in a built-in 3.5 mm male plug instead of relying on a separate detachable cable.
When it matters: When direct wired compatibility with older devices or adapters matters.
Importance: MEDIUM
Klim Fusion includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
In-line controls
Klim Fusion includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
What it is: Controls available on in-line remote of wired cable
When it matters: When your wired setup depends on cable-mounted buttons or call controls.
Importance: LOW
Klim Fusion includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
0.2 % lower distortion
Klim Fusion has a lower total harmonic distortion than the average headphone (0.1 % 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: LOW
Good value: <=1%
Klim Fusion has a lower total harmonic distortion than the average headphone (0.1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.0.1 % vs 0.3 %
USB-C charging
Klim Fusion 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
Klim Fusion uses USB-C charging, the average headphone does not. 29.4% of headphones use USB Type-C.
Quick mic mute
Klim Fusion includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
What it is: Ability to mute microphone during calls
When it matters: When you need to silence the mic quickly during meetings or multiplayer games.
Importance: LOW
Klim Fusion includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
4.5x cheaper
Klim Fusion is cheaper than the average headphone (£20 vs £90).
Klim Fusion is cheaper than the average headphone (£20 vs £90).£20 vs £90
90.8% lower weight
Klim Fusion is lighter than the average headphone (20 g vs 218 g). The average pair of headphones weighs 218 g.
0.2 % lower distortion
Klim Fusion has a lower total harmonic distortion than the average headphone (0.1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
3 Hz lower bass extension
Klim Fusion has a lower lowest frequency than the average headphone (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
USB-C charging
Klim Fusion uses USB-C charging, the average headphone does not. 29.4% of headphones use USB Type-C.
Direct 3.5 mm plug
Klim Fusion includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
Clear call microphone
Klim Fusion offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
In-line controls
Klim Fusion includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
Quick mic mute
Klim Fusion includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
Boom microphone included
Klim Fusion includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.

Calls & Controls

Why is Klim Fusion worse than the average headphone?

Show more

Hide

Fixed cable
Klim Fusion has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
31 mm smaller driver size
Klim Fusion has smaller driver size than the average headphone (9 mm vs 40 mm). The average headphones use a driver size of 40 mm.
4 dB/mW lower sensitivity
Klim Fusion has a lower sensitivity than the average headphone (98 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
No neodymium magnet
Klim Fusion does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
95% lower input power handling
Klim Fusion has a lower max input power than the average headphone (5 mW vs 100 mW). The average headphones handle max input power of 100 mW.
5 dB SPL lower sound pressure level
Klim Fusion has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
31 mm smaller driver size
Klim Fusion has smaller driver size than the average headphone (9 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: MEDIUM
Klim Fusion has smaller driver size than the average headphone (9 mm vs 40 mm). The average headphones use a driver size of 40 mm.9 mm vs 40 mm
Fixed cable
Klim Fusion has a fixed cable, while the average headphone 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: MEDIUM
Klim Fusion has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
4 dB/mW lower sensitivity
Klim Fusion has a lower sensitivity than the average headphone (98 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
Klim Fusion has a lower sensitivity than the average headphone (98 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.98 dB/mW vs 102 dB/mW
No neodymium magnet
Klim Fusion does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
What it is: Uses neodymium magnets for stronger, clearer sound
When it matters: When driver construction details are part of how you compare sound hardware.
Importance: LOW
Klim Fusion does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
5 dB SPL lower sound pressure level
Klim Fusion has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
What it is: Output loudness level of the headphones, usually measured in dB. It helps compare how loud a model can play under similar conditions.
When it matters: When you need a rough idea of how loud the headphones can get before you pair them with a weaker source.
Importance: LOW
Good value: >=108 dB SPL
Klim Fusion has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.98 dB SPL vs 103 dB SPL
95% lower input power handling
Klim Fusion has a lower max input power than the average headphone (5 mW vs 100 mW). The average headphones handle max input power of 100 mW.
What it is: Maximum input power the drivers can safely handle
When it matters: When you pair the headphones with stronger sources or dedicated gear.
Importance: LOW
Good value: >=300 mW
Klim Fusion has a lower max input power than the average headphone (5 mW vs 100 mW). The average headphones handle max input power of 100 mW.5 mW vs 100 mW

Graphic comparison of Klim Fusion and

Attribute category

Attribute

No results found

Third-party reviews

United Kingdom

United States

(Reviews last updated: Jun 2026)

What customers like about Klim Fusion?

Excellent value for the price point
High level of comfort provided by memory foam ear tips
Strong, punchy bass performance emphasized for gaming
Generous accessory bundle including multiple ear tips, carrying case, and PC splitter
Magnetic earbuds allow for convenient storage around the neck
Effective passive noise isolation due to the foam tip seal
Solid 5-year warranty policy from the manufacturer

What customers dislike about Klim Fusion?

Build quality receives mixed reviews, with some reporting early failure or breakage
Bass can be overpowering for some music genres, occasionally masking mids and highs
Memory foam tips are prone to discoloration and can be difficult to clean
Wired cable is very long, which is great for PC gaming but cumbersome for mobile/on-the-go use
Microphone quality is considered average or 'stumpf' (dull) and prone to echo
Cable is reported by some users to be prone to tangling despite manufacturer claims

Expert reviews

gbatemp.net

16/03/2019

Klim Fusion Earphones Review (Hardware) - GBAtemp

The GBAtemp review of the KLIM Fusion earphones highlights a generous accessory package, featuring a metal tin, fabric case, and six pairs of ear tips, including memory foam for effective passive noise isolation. Additional pros include the 1.7-meter cable, magnetic earbud backings to prevent tangling, and a convenient volume slider. GBAtemp.netHowever, the review identifies...Read more

gamers-palace.de

31/10/2019

KLIM Pods Review – Affordable True Wireless Earbuds (Reviewer notes 2.5 years of long-term use with the KLIM Fusion)

On the downside, the review notes a highly complicated initial setup process where the left and right earbuds failed to sync automatically, requiring a manual 10-second button reset routine outlined in the handbook. Sound quality, while decent and bass-forward for the price, lacks a natural tone and feels slightly flat when compared directly to wired alternatives. Furthermore, their...Read more

hifi-lab.fr

06/12/2018

KLIM Fusion Earbuds: Review and Test

The HIFI-LAB review provides a highly favorable assessment of the KLIM Fusion in-ear headphones, emphasizing their outstanding affordability, versatile design, and unique features. A major pro highlighted in the review is the inclusion of innovative memory foam ear tips, which perfectly adapt to the user's ear canal to deliver supreme comfort and a secure fit during active movements...Read more

italia3dprint.it

05/09/2018

KLIM Earphones Review", "KLIM Earbuds Review

This review from Italia 3D Print highlights the KLIM Fusion as an exceptionally budget-friendly set of in-ear headphones priced at €19.90 on Amazon, aiming to balance affordability with high-quality construction. The reviewer notes that the unboxing experience feels premium for the price point, featuring a highly durable cylindrical metal storage box. Inside, it comes generously...Read more

gamescore.it

20/10/2017

KLIM Fusion - Gaming Earphones - Review - GameScore.it

notes that the earphones deliver a well-balanced mid and high-frequency audio profile with satisfyingly deep bass, creating a highly immersive experience during games like FIFA 18. The specific technical and structural pros and cons identified in the evaluation are detailed below: Pros: Excellent Construction: The main earbud housings and the 3.5 mm jack are solidly constructed from...Read more

socialandtech.net

20/01/2017

KLIM Fusion Earphones - SocialandTech

The SocialandTech review highlights the KLIM Fusion earphone as a budget-friendly wired product from a Hong Kong startup that balances elegance, affordability, and audio quality. Priced at around 17 Euros on Amazon, the earphones stand out due to their distinct metal packaging, lightweight aluminum build, and included green fabric carrying pouch, PC gaming audio splitter, and memory...Read more

Video reviews

Best alternatives

Sony WH 1000XM4

Headphones

JBL Tour One M3

Headphones

Sony WH 1000XM6

Headphones

Headphones

Headphones

Sony WH ULT900N

Headphones

Nothing Headphone 1

Headphones

Sony WH 1000XM5

Headphones

Headphones

Huawei Freebuds Studio

Headphones

Sennheiser Momentum

Headphones

JBL Tour One M2

Headphones

Compare Klim Fusion with

Compare