Audio Technica Audio-Technica ATH-CK1TW Completely wireless earphone / Bluetooth / Playback for up to about 21 hours / Call quality enhancement / IPX5 / 7 / Low delay mode / One ear usable / Small charging case Blue ATH-CK1TW BL

Technical Conformity Mark certified product (Frequency band 2.4GHz band) Earphone design that is easy to wear on the ear and does not cause fatigue. A newly developed charging case that is lightweight and easy to carry. The earphones are designed at an angle that makes it easy to take them out of the case.Comes with 4 types of soft silicone earpieces (XS, S, M, L sizes) that provide optimal sound quality and fit. You can rest assured even if you get wet in the rain or sweat. Don't worry if you drop it in water.Intuitive operation without hesitation with one button. You can adjust the volume while listening or talking without stress.Enjoy clear, hands-free calls with both ears or one ear. Wind noise is suppressed, so you can talk safely indoors and outdoors. Sidetone function that makes it easier to speak by returning your voice to the earphones. You don't have to speak louder than necessary, which is common during calls.Other useful functions Power on just by taking it out of the case, ready to use Fast Pair compatible, convenient when connecting to an Android device Can be used with just one ear Low Latency Mode, which suppresses the gap between sound and video Continuous playback for approximately 7 hours, maximum playback for approximately 21 hours Multi-pairing function for registering multiple devices