BT 5.0 Wireless In-Ear Earphone Mini Sport IPX5 Waterproof Swearproof Earbuds with Charging Case
features automatical connected once the earphone is taken out fromcharging box without any operation. And it adopts BT 5.0 version, so it has no delay, low power consumption, and perfectcompatibility of signal. Mini size, you can carry it anywhere. Perfec.