Poull Bluetooth Earbuds is a Bluetooth 5.1 version, compatible with any Bluetooth-enabled device, with noise-reduction technology presents a powerful and wide sound range. One step easy pair and auto off feature with charging box, easily skip tracks/change volume/play or pause music/answer or reject calls with touch control. They can be used to play music and pick up phone calls last up to 5 hours, and can be recharged in its charging box with 200mAh. LED display is avalable on the earbud and charging box.