AUDIO TECHNICA Wireless In-Ear Headphone with Bluetooth (with Black, Blue, Silver & Red Color Choice)

ATH-CKR35BT

Audio Technica

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Take Sound Reality on the go.

The ATH-CKR35BT in-ear headphones feature Bluetooth® wireless technology along with an in-line mic and controls, allowing you to answer calls, adjust volume and handle playback of music and videos on compatible smartphones and other devices. And with the headphones’ high-performance 9.8 mm drivers and vibration-absorbing brass stabilizers you’re assured true-to-life audio with remarkably clear mid and high frequencies.

The headphones feature compact housings designed to fit comfortably in anyone’s ears and provide a high level of sound isolation – a fit enhanced by four sizes (XS, S, M, L) of interchangeable eartips. The in-line mic and controls are part of a comfortable behind-the-neck cord design that places the battery case on the upper back where, if desired, it can be attached to your shirt collar with the included clip. Also included are a 30 cm (11.8") USB charging cable and a protective pouch.

Available in black (ATH-CKR35BTBK), blue (ATH-CKR35BTBL) and silver (ATH-CKR35BTSV).


*The Bluetooth® word mark and logos are owned by Bluetooth SIG, Inc. and any use of such marks by Audio-Technica Corporation is under license. Other trademarks and trade names are those of their respective owners.


  • 9.8 mm drivers deliver clear mid and high-frequencies
  • Compatible with AAC codecs
  • Lightweight in-ear design offers a discrete, weightless listening experience
  • In-line smartphone control with mic for managing music and calls
  • Cable-clip can be attached to clothing for a secure, stable wearing fit
  • Protective carrying pouch for safe storage


Type Dynamic
Driver Diameter 9.8mm
Frequency Response 5 – 24,000Hz
Sensitivity 102dB/mW
Impedance 16 ohms
Battery DC 3.7V lithium polymer battery
Battery Life Continuous use : 7 hours approx.
Standby : 200 hours
Weight 15.5g
Accessories Included USB charging cable (Type-A/Micro USB Type-B), Eartips (XS/S/M/L), Carrying case, Cable clip
Microphone Type Electret Condenser
Charging Time 3 hours
Polar Pattern Omnidirectional
Frequency Response 100 – 10,000 Hz
Open Circuit Sensitivity -44 dB (1V/Pa at 1 kHz)
Bluetooth® Version Bluetooth® version 4.1
Output Power Class 2
Operating Range Line of sight (approx. 10m)
Compatible Bluetooth® Profiles A2DP, AVRCP, HFP, HSP
Support Codec AAC, SBC