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Sound Reality Wireless In-Ear Headphones

U.S. Two-Year Limited End-User Warranty

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.

  • wireless in-ear headphones
  • in-ear headphones
  • in-ear headphones with bluetooth
  • wireless bluetooth headphones
  • bluetooth headphones
  • wireless headphones
  • in-ear bluetooth headphones
  • wireless headphone accessories

  • Overview
  • Features
  • Specifications
  • Downloads
  • Reviews
  • Q & A

  • Overview

    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.
  • Features

    • Bluetooth wireless technology with in-line mic and controls for answering/ending calls, controlling music & video playback and controlling volume on Bluetooth wireless devices

    • High-performance 9.8 mm drivers for rich, wide-range sound reproduction

    • The compact housings are designed to provide a comfortable fit for ears of all sizes

    • Machined brass stabilizers absorb unwanted vibration for clearer mid and high frequencies

    • Internal lithium polymer battery provides seven hours of continuous use (200 hours on standby) on a full charge

    • Includes silicone eartips (XS/S/M/L), secure-fit battery clip, 30 cm (11.8"), USB charging cable and protective pouch

    • Compatible with AAC codec for high-quality sound and low latency

    • Included clip lets you attach the battery case to the back of your shirt collar

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

  • Specifications

    Driver Diameter9.8 mm
    Frequency Response5 – 24,000 Hz
    Sensitivity102 dB/mW
    Impedance16 ohms
    BatteryDC 3.7 V lithium polymer rechargeable battery
    Battery Life7 hours continuous use (200 hours standby)
    Charging Time: Approx. 3 hours
    Weight15.5 g (0.5 oz)
    Accessories Included30 cm (11.8") USB charging cable, eartips (XS/S/M/L), secure-fit battery clip, protective pouch
    Type (Microphone)Condenser
    Sensitivity (Microphone)-44 dB (1V/Pa, 1 kHz)
    Frequency Response (Microphone)100 - 10,000 Hz
    Polar Pattern (Microphone)Omnidirectional

    Communication System: Bluetooth Version 4.1
    Support Codec: AAC

  • Downloads

    ATH-CKR35BT User Manual (pdf 1.16 M)
  • Reviews

    Great sound... cords are breaking after 6 months...


    I'm in love with the sound, but the clipping piece broke way too soon (after 2 months) and the cords rubber protection broke at the tips between the battery and the microphone controls... There's no way to fix that... and although the wire itself still works, every day the problem grows bigger, I've taped them, and used silicone but still it doesn't work. This happened even though I keep em in the pouch that came with them.

    Bogotá, Colombia


    ATH-CKR35BT Sound Reality Wireless In-Ear Headphones

    4.0 1


  • Q & A

    Hello Audio-Technica! I've had you ATH-CKR35BT for almost a year now and I must say, the sound quality is amazing! But the right side has stopped working and I don't have a warranty for this product. Is there a way to get my product repaired? Cheers!


    Please contact our Service Department at (330) 686-2600 ext 5003 or at for assistance with this.


    Hi audio-technica! I have your headset ATH-CKR35BT and while in general I am very satisfied with the product itself, I am said to discover that the cable-clip fell apart. I was wondering whether it is possible to get a replacement for the clip or if there are any other solutions to my problems. Best regards, Emiliya


    You may contact your local Audio-Technica offices for further assistance.


    I have your ATH-CKR35BT ear buds. I would like to use it with my computer. I have a USB Bluetooth adaptor. I can see both devices in my Device manager. How can I get your ear buds to work with my computer? The Desktop computer does not have Bluetooth or WiFi without the Insignia Bluetooth Device. Insignia model # BCM20702A0 Audio Technica model # ATH-CKR35BT I'm just trying to hear the music... PS: I work across the street from you office in Stow, Ohio. I bought the Ear Buds at your Christmas sale. Thank You Nardo


    Thank you for your inquiry. Not familiar with this Bluetooth adapter. There may need to be some configuration setting to use it as an audio transmitter.