Compact Wireless In-Ear Headphones

$189 + shipping (includes gst)

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.

  • 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
  • Touch control in each earbud housing cradles the fingertip for easy management of music, calls, and volume
  • Internal battery supplies six hours of continuous use on a full charge and portable charging case gives you an additional 24 hours of on-the-go power
  • Compatible with Siri and Google Assistant for convenient and quick hands-free voice command activation
  • 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
  • Includes silicone eartips (XS/S/M/L) and 30 cm (12") USB-A/USB-C charging cable


Driver Diameter

5.8 mm

Frequency Response

20 – 20,000 Hz


98 dB/mW


16 ohms


Headphones: DC 3.7V lithium-ion battery
Charging case: DC 3.7V lithium polymer battery

Battery Life

Max. approx. 6 hours* (headphones); max. approx. 24 hours* (with charging case)
Charging time: approx. 2 hours* (headphones); approx. 2.5 hours* (charging case)


Headphones: Approx. 4.7 g (L side), approx. 4.7 g (R side)
Charging case: Approx. 49.7 g

Accessories Included

30 cm 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)


Operating Temperature

5°C to 40°C

Communication system

Bluetooth version 5.0

RF output

10 mW EIRP

Maximum communication range

Line of sight – approx. 10 m

Frequency band

2.402 GHz to 2.480 GHz

Modulation method


Compatible Bluetooth profiles


Support codec

Qualcomm® aptXTM audio, SBC

Supported content protection method


Transmission band

20 to 20,000 Hz

ATH-CK3TW User Manual (PDF) Download
ATH-CK3TW Quick Start Guide (PDF) Download
ATH-CK3TW Caution Guide (PDF) Download

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