Audio-Technica ATH CKR55BT vs. KEF Mu3

Headphones Comparison, Reviews and Tests

Detailed comparison and review of Audio-Technica ATH CKR55BT and KEF Mu3. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.

Headphones Specifications Comparison

Audio-Technica ATH CKR55BT vs. KEF Mu3 Comparison Chart
DESIGN AND DIMENSIONS Audio-Technica ATH CKR55BT KEF Mu3
Product Type Earphones - Bluetooth - wireless True wireless earphones - Bluetooth - wireless
Weight 17 g -
Dimensions & Weight Details - Earbud: 1.75 cm x 2.63 cm x 2.45 cm / 5.8 g
Charging case: 6.2 cm x 5.2 cm x 3.35 cm / 46.8 g
Colour Steel black Silver grey
Protection - Splashproof
Recommended Use - Portable electronics
Bluetooth Range (Operating Distance) 10 m 10 m The maximum operating distance of both headphones is the same.
SOUND QUALITY Audio-Technica ATH CKR55BT KEF Mu3
Headphones Form Factor In-ear In-ear
Headphones Technology Dynamic -
Connectivity Technology Wireless Wireless
Wireless Technology Bluetooth Bluetooth
Bluetooth Version Bluetooth 4.1 Bluetooth 5.0 KEF Mu3 have a more advanced version of Bluetooth than Audio-Technica ATH CKR55BT.
Bluetooth Profiles Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) -
Bluetooth Audio Codec - SBC, AAC
Active Noise Cancelling - Yes KEF Mu3 are equipped with active noice cancellation.
Sound Output Mode Stereo Stereo
Frequency Response 20 - 20000 Hz 20 - 20000 Hz Both headphones offer the same frequency response.
Max Input Power - 5 mW
Sensitivity 103 dB/mW 104 dB/mW KEF Mu3 have higher sensitivity than Audio-Technica ATH CKR55BT.
Impedance 16 Ohm 16 Ohm
Diaphragm 10.7 mm 8.2 mm Audio-Technica ATH CKR55BT have a thicker diaphragm than KEF Mu3.
MICROPHONE Audio-Technica ATH CKR55BT KEF Mu3
Form Factor - Built-in
Type On-cable -
Microphone Technology Electret condenser -
Microphone Operation Mode Omni-directional -
Frequency Response 100 - 10000 Hz -
Audio Input Details Omni-directional - 100 - 10000 Hz -
Sensitivity -44 dB -
REMOTE CONTROL Audio-Technica ATH CKR55BT KEF Mu3
Controls - Multiple function button
CABLE Audio-Technica ATH CKR55BT KEF Mu3
Cable Type Micro-USB charge cable - detachable - 30 cm -
BATTERY AND CHARGING Audio-Technica ATH CKR55BT KEF Mu3
Battery Type 1 x headphone battery rechargeable - lithium polymer Headphone battery rechargeable - Lithium Ion
Battery Capacity - 50 mAh
Battery Life 7 hour(s) 9 hour(s) KEF Mu3 lasts longer on a single charge than the Audio-Technica ATH CKR55BT.
Battery Life Details - Continuous playback (noise cancelling ON): up to 9 hours
Continuous playback (with included charging case): up to 24 hours
Standby Time 200 hours -
Charging Time 3 hour(s) -
Included Qty 1 2
WIRELESS LINK Audio-Technica ATH CKR55BT KEF Mu3
Modulation Type FHSS -
Radio Frequency Range 2.402 - 2.480GHz -
OTHERS Audio-Technica ATH CKR55BT KEF Mu3
Included Accessories Clip, pouch case, 4 pairs of ear tips (XS, S,M, L) 4 pairs of silicone ear tips, USB-C charging cable, charging case (350 mAh)
Compliant Standards - IPX5
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