Audio-Technica ATH CKR55BT vs. Sennheiser CX True Wireless

Headphones Comparison, Reviews and Tests

In depth comparison and review of Audio-Technica ATH CKR55BT and Sennheiser CX True Wireless. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.

Headphones Specifications Comparison

Audio-Technica ATH CKR55BT vs. Sennheiser CX True Wireless Comparison Chart
DESIGN AND DIMENSIONS Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Product Type Earphones - Bluetooth - wireless True wireless earphones - Bluetooth - wireless
Weight 17 g -
Dimensions & Weight Details - Earbud: 6 g
Charging case: 5.9 cm x 4.23 cm x 3.38 cm / 37 g
Colour Steel black Black | White
Protection - Splashproof, IPX4
Recommended Use - Portable electronics
Bluetooth Range (Operating Distance) 10 m -
SOUND QUALITY Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Headphones Form Factor In-ear In-ear
Headphones Technology Dynamic Dynamic
Ear Cups Type - Closed
Connectivity Technology Wireless Wireless
Wireless Technology Bluetooth Bluetooth
Bluetooth Version Bluetooth 4.1 Bluetooth 5.2 Sennheiser CX True Wireless 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) Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP)
Bluetooth Audio Codec - SBC, AAC, aptX
Noise Isolating - Yes Sennheiser CX True Wireless are equipped with a noise isolating function.
Sound Output Mode Stereo Stereo
Sound Effects - Bass Boost
Frequency Response 20 - 20000 Hz 5 - 21000 Hz Sennheiser CX True Wireless offer a larger frequency range than Audio-Technica ATH CKR55BT.
Total Harmonic Distortion (THD) - <0.08%
Sensitivity 103 dB/mW 110 dB Sennheiser CX True Wireless have higher sensitivity than Audio-Technica ATH CKR55BT.
Impedance 16 Ohm 16 Ohm
Max Sound Pressure - 110 dB
Diaphragm 10.7 mm 7 mm Audio-Technica ATH CKR55BT have a thicker diaphragm than Sennheiser CX True Wireless.
Simultaneously Connectable Devices Qty (Multipoint) - 1
Features - TrueResponse technology
MICROPHONE Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Form Factor - Built-in
Type On-cable -
Microphone Technology Electret condenser -
Microphone Operation Mode Omni-directional -
Frequency Response 100 - 10000 Hz 100 - 10000 Hz The frequency response of the microphones in both headphones is the same.
Audio Input Details Omni-directional - 100 - 10000 Hz -
Sensitivity -44 dB -
Microphones Included - 4
CABLE Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Cable Type Micro-USB charge cable - detachable - 30 cm USB-C charge cable - detachable - 25 cm
FEATURES Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Features - Touch control
Internet of Things (IoT) Compatible - Yes
Voice Control - Indirect
Intelligent Assistant - Siri, Google Assistant
BATTERY AND CHARGING Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Battery Type 1 x headphone battery rechargeable - lithium polymer Headphone battery rechargeable - Lithium Ion
Battery Capacity - 60 mAh
Battery Life 7 hour(s) 9 hour(s) Sennheiser CX True Wireless lasts longer on a single charge than the Audio-Technica ATH CKR55BT.
Battery Life Details - Continuous playback (50% volume): up to 9 hours
Continuous playback (with included charging case): up to 27 hours
Standby Time 200 hours -
Charging Time 3 hour(s) 1.5 hour(s) Sennheiser CX True Wireless recharge faster than Audio-Technica ATH CKR55BT.
Included Qty 1 2
WIRELESS LINK Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Modulation Type FHSS -
Radio Frequency Range 2.402 - 2.480GHz -
OTHERS Audio-Technica ATH CKR55BT Sennheiser CX True Wireless
Included Accessories Clip, pouch case, 4 pairs of ear tips (XS, S,M, L) 4 pairs of earpads (extra small, small, medium, large), charging case (400 mAh)
Compliant Standards - Bluetooth Class 1
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