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ATH-CK3TW

Wireless In-Ear Headphones

*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
  • wireless headphones
  • truly wireless
  • headphones with mic
  • bluetooth headphones


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

  • Overview

    The ATH-CK3TW truly wireless in-ear headphones with Bluetooth® 5.0 technology are ready to go whenever – and wherever – you are, empowering you to “explore and connect.” Remove them from their small, portable charging case and they automatically turn on. Put them back in the case and they turn off and start charging. The headphones are even equipped with smart sensors that detect when you remove the headphones from ears and when you put them back in, automatically pausing and playing the audio again so you never miss a beat.

    The headphones are equipped with specially designed 5.8 mm drivers that reproduce powerful, detailed audio from an ultra-compact design. These ergonomic, minimalist earbuds fit naturally in ears of all sizes and come with four sizes of thin, flexible silicone eartips (XS/S/M/L) that further customize the fit, providing excellent isolation and improved sound delivery.

    The compact earbud housings include a built-in mic and touch controls that are easy to find with the fingertip, making management of your music and phone calls a snap. Call quality is greatly improved by Qualcomm cVc™ (Clear Voice Capture) technology. Call audio also plays in both headphones, making conversations even clearer.

    The headphones have an IPX2 water-resistance rating, which means they are protected from dripping water, such as rain and sweat. They are compatible with the high-quality Qualcomm® aptXTM audio codec and with Qualcomm TrueWireless™ Stereo Plus, a special low-latency function that allows you to stream the latest releases with no audio disruption and a stable connection.*

    The ATH-CK3TW earbuds offer six hours of continuous use on a full charge, with 24 hours of additional power available from the charging case. Both the earbuds and the charging case have LED indicators to display the charging status, and the charging case is equipped with a USB-C battery jack to improve charging time.

    Available in black (ATH-CK3TWBK), blue (ATH-CK3TWBL), and white (ATH-CK3TWWH).

    *Requires a smartphone/device that is compatible with Qualcomm TrueWireless Stereo Plus functionality. Qualcomm TrueWireless is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
  • Features


    • Truly wireless listening experience with Bluetooth® 5.0 technology frees you from the hassle of wires

    • Water-resistant performance (IPX2 drip-proof rating) protects headphones from dripping water, such as rain and sweat

    • Ergonomic, minimalist design fits the ear naturally and makes the earbuds easy to transport

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

    • Thin, flexible silicone eartips fit securely and improve sound delivery

    • Auto power function turns the earbuds on when they’re removed from the charging case and turns them off and begins charging when they’re returned to the case

    • Smart sensors detect when you remove the headphones from ears and when you put them back in, automatically pausing/playing the audio so you never miss a beat

    • Touch control in each earbud housing cradles the fingertip for easy management of music, calls, and volume

    • Compatible with Siri and Google Assistant for convenient and quick hands-free voice command activation

    • Internal battery supplies six hours of continuous use on a full charge

    • Portable charging case gives you an additional 24 hours of on-the-go power

    • LED indicators on the charging case and earbuds prominently display the charging status

    • Specially designed 5.8 mm drivers deliver powerful, detailed audio from an ultra-compact design

    • Qualcomm cVc™ (Clear Voice Capture) technology ensures you can have clear, natural-sounding conversations during calls

    • Qualcomm TrueWireless™ Stereo Plus, a special low-latency function, ensures you can stream the latest releases with no audio disruption and a stable connection*

    • Compatible with high-quality Qualcomm® aptXTM audio codec

    • Call audio plays in both headphones for greater clarity

    • Includes silicone eartips (XS/S/M/L) and 30 cm (12") USB-A/USB-C charging cable

    • Available in black (ATH-CK3TWBK), blue (ATH-CK3TWBL), and white (ATH-CK3TWWH)


    *Requires a smartphone/device that is compatible with Qualcomm TrueWireless Stereo Plus functionality. Qualcomm TrueWireless is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
  • Specifications

    TypeDynamic
    Driver Diameter5.8 mm
    Frequency Response20 – 20,000 Hz
    Sensitivity98 dB/mW
    Impedance16 ohms
    BatteryHeadphones: DC 3.7V lithium-ion battery
    Charging case: DC 3.7V lithium polymer battery
    Battery LifeMax. approx. 6 hours* (headphones); max. approx. 24 hours* (with charging case)
    Charging time: approx. 2 hours* (headphones); approx. 2.5 hours* (charging case)
    WeightHeadphones: Approx. 4.7 g (0.17 oz) (L side), approx. 4.7 g (0.17 oz) (R side)
    Charging case: Approx. 49.7 g (1.8 oz)
    Accessories Included30 cm (12") USB-A/USB-C charging cable, eartips (XS, S, M, L)
    Type (Microphone)MEMS type
    Sensitivity (Microphone)-38 dB (1 V/Pa, at 1 kHz)
    Frequency Response (Microphone)100 – 10,000 Hz
    Polar Pattern (Microphone)Omnidirectional



    Operating Temperature: 5°C to 40°C (41°F to 104°F)
    Communication system: Bluetooth version 5.0
    RF output: 10 mW EIRP
    Maximum communication range: Line of sight - approx. 10 m (33')
    Frequency band: 2.402 GHz to 2.480 GHz
    Modulation method: FHSS
    Compatible Bluetooth profiles: A2DP, AVRCP, HFP, HSP
    Support codec: Qualcomm® aptXTM audio, SBC
    Supported content protection method: SCMS-T
    Transmission band: 20 to 20,000 Hz

    *Depending on operating conditions


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