Audio-Technica In-Ear Wireless Earphones - Black
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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. For starters, the ATH-CKS50TW earbuds provide best-in-class battery life, with up to 20 hours of continuous use on a full charge.

Newly developed 9 mm drivers deliver clear, full-range audio with the punch of enhanced bass
Best-in-class battery life with up to 20 hours of continuous playback on a full charge (and up to 90 minutes of use from a 10-minute quick charge)
Multipoint pairing function allows you to stay connected to two Bluetooth devices at once
Buttons in the earbuds provide easy control of music playback, volume, calls, and hear-through and noise-cancelling functions
Low latency mode improves synchronicity between audio and video for smooth streaming and gaming
Hybrid eartip structure combines hard and soft silicone material to provide a secure, comfortable fit with superior sound performance
Selectable hear-through function lets in ambient sounds so you can remain aware of your surroundings
A-T Connect app gives you additional control: activate low latency mode, adjust and save EQ to the headphones, change L/R volume balance, locate misplaced headphones, change codecs, and more
Flexible dual- or single-ear usability
Automatic power-on when removed from the case
Google Fast Pair lets you quickly pair headphones with an Android smartphone or other device
Qualcomm® cVc™ Generation 8.0 ensures excellent call quality
Sidetone circuitry improves conversations by letting you hear your voice in the headphones when making calls on most smartphones
Compatible with high-quality Qualcomm® aptX™ Adaptive audio, Qualcomm® aptX™ audio, and AAC codecs
Compatible with Sony’s 360 Reality Audio for a truly immersive sound experience
Rain and water splashproof design (IPX4*-equivalent)
* IPX4 equivalent means that there is no harmful effect even if water is splashed from all directions. It cannot be used in hot and humid places such as baths. It is not completely waterproof.


Type: Dynamic
Driver Diameter: 9 mm
Frequency Response: 5 to 20,000 Hz
Sensitivity: 110 dB/mW
Impedance: 20 ohms
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

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

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)

USB charging cable (30 cm (12"), USB Type-A / USB Type-C))
Eartips (XS, S, M, L)
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