Audio-Technica ATH-CKS50TW Noise-Canceling True Wireless In-Ear Headphones (Black) - Manual (Page 38)

Specifications
37
Other
Power supply
Headphones: DC 3.7 V lithium ion battery
Charging case: DC 3.7 V lithium ion battery
Charging time
Headphones: Approx. 3 hours
[2]
Charging case: Approx. 3 hours [2]
Operating time
Continuous transmission time (music playback): Max. approx. 20 hours [2]
(headphones)
Max. approx. 50 hours
[2] (if charging case is used in combination)
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)
Water-resistant (drip-proof)
performance
IPX4 [3]
Operating temperature 5°C to 40°C (41°F to 104°F)
Accessories
USB charging cable (30 cm (12"), USB Type-A / USB Type-C), Eartips (XS, S,
M, L)
Sold separately Eartips
[1] When using Qualcomm ® aptX ™ Adaptive audio.
[2] The figures above depend on operating conditions.
[3] Headphones only.
For product improvement, the product is subject to modification without notice.