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Unlike many companies that produce truly wireless headphones, Audio-Technica places an emphasis on sound quality, not just convenience. The ATH-CKS50TW earphones are no exception. Featuring specially designed 9 mm drivers, these earbuds deliver clear, full-range audio with deep, powerful bass – low frequency is enhanced by acoustic ducts on the back of the drivers.

Features:

• Bluetooth 5.2 Wireless Technology
• 20 hr Battery Life + 30 hrs of Case Charging
• Noise-Cancelling
• Mode Quick Charge

A Revolutionary Music Experience
The newly developed large-diameter drivers (9mm Solid Bass HD TWS drivers) deliver deep, powerful bass while the CKS50TW shape provides a secure and comfortable fit – an important factor for truly wireless headphones. The airtight fit prevents the bass from escaping to deliver a unique and intimate music experience.

Up to 20 hours* of Power on a Single Charge
Using the ATH-CKS50TW earbuds with the charging case allows for as much as 50 hours of playback (20 hours in the earbuds + an additional 30 hours with the charging case, Results may vary depending on usage conditions) so you can enjoy 1.5 hours of music every day for a whole month without needing to recharge. Plus, gain 90 minutes of power from just 10 minutes of charge time. (As of September 2021 according to in-house figures, with noise-cancelling disabled. (*Playback for around 15 hours is possible with noise-cancelling enabled. Results may vary depending on usage conditions. (Results may vary depending on usage conditions.)

Noise-Cancelling Mode
Simply press the built-in button on the left earbud or activate noise-cancelling via the Audio-Technica Connect App. A handy hear-through function can be activated with one tap of the button on the right earbud, for a momentary return to your surrounding environment before getting lost in music again.

Innovative, Comfortable, Earbud Design
The newly developed earbud design ensures a secure and stable fit that prevents the earbuds from falling out of the ears, even during intensive workouts. CKS50TW comes with four pairs of soft silicone eartips, allowing for a deeper audio performance and superior, long-lasting comfort.

Minimise Audio Lag with Low Latency Mode
Enjoy a more immersive experience with minimal sound delay while playing games or watching videos on your smartphone or tablet with Low Latency Mode. (Low Latency Mode can also be turned on/off from the Connect app. Bluetooth® connections may be affected by obstacles and ambient radio wave conditions.)

Multi-point Support for Two Simultaneous Bluetooth® Connections
You can connect to both your smartphone and computer/tablet at the same time, so you’ll never need to worry about switching devices again. Respond immediately to incoming calls on your smartphone while enjoying videos on your tablet without having to re-pair.

Specifications:
Headphones
Type – Dynamic
Driver Diameter – 9 mm
Frequency Response – 5 to 20,000 Hz
Sensitivity – 110 dB/mW
Impedance – 20 ohms
Weight – Headphones: Approx. 8 g (0.28 oz) (L side), approx. 8 g (0.28 oz) (R side); Charging case: Approx. 60 g (2.1 oz)
Charging Time – Headphones: Approx. 3 hours
Charging case: Approx. 3 hours The figures above depend on operating conditions.
Operating Temperature – 5 °C to 40 °C (41 °F to 104 °F)
Operating Time – Continuous transmission time (music playback): Max. approx. 20 hours (headphones), Max. approx. 50 hours (if charging case is used in combination)
The figures above depend on operating conditions.
Microphone Type – MEMS type
Microphone Sensitivity – –38 dB (1 V/Pa, at 1 kHz)
Microphone Frequency Response – 100 to 8,000 Hz
Microphone Polar Pattern – Omnidirectional
Power Supply – Headphones: DC 3.7 V lithium ion battery
Charging case: DC 3.7 V lithium ion battery
Water-Resistant (drip-proof) Performance – IPX4 Headphones only

Accessories Included: USB charging cable (30 cm (12"), USB Type-A / USB Type-C), Eartips (XS, S, M, L)
Notes: For product improvement, the product is subject to modification without notice.
Bluetooth®
Bluetooth® Version – Bluetooth version 5.2
Operating Range – Line of sight – approx. 10 m (33')
Maximum RF Output – 10 mW EIRP
Frequency Band – 2.402 GHz to 2.480 GHz
Modulation Method – GFSK, Pi/4DQPSK, 8DPSK
Spread Spectrum Method – FHSS
Compatible Bluetooth Profiles – A2DP, AVRCP, HFP
Support Codec – Qualcomm® aptX™ Adaptive audio, Qualcomm® aptX™ audio, AAC, SBC
Supported Content Protection Method SCMS-T
Supported Sample Rates – 44.1 kHz, 48 kHz
Supported Bit Rates – 16 bit, 24 bit When using Qualcomm® aptX™ Adaptive audio.
Transmission Band – 20 to 20,000 Hz