Features:<br />Adopt BT 5.0 chip, longer transmission distance, fast transmission speed, more stable signal, lower power consumption.<br />Graphene moving coil unit, 8D surround stereo sound effect.<br />Ergonomic in-ear design, fit the ear canal, comfortable to wear.<br />Equipped with intelligent control button, easy to play/pause music, answer/hang up the calls and adjust volume, etc.<br />It can be used as a power bank to charge your mobile phone.<br />Long endurance time, the charging case is equipped with 1200mAh lithium battery, no need to worry about power shortage.<br/>Specification:<br />Type: Wireless BT headphone <br />Type: In-ear<br />Colour: Black/White(optional)<br />BT version: V5.0<br />Transmission distance: 10-15m<br />Music time: About 4-5 hours<br />Call time: About 4-5 hours<br />Standby time: About 180 hours<br />Charging time: About 2 hours(charging case), About 1 hour(earbud)<br />Battery capacity: 1200mAh(charging case), 50mAh(earbud)<br/>Packing list:<br />1 * Pair of earbuds<br />1 * Charging case<br />1 * Charging cable<br />2 * Pairs of earplugs<br />1 * User manual