Overview: 1. 7-color LED light-breathing light, cool design can be opened freely, only need a brief control to open the key, 2. ~10H Play time, ~20 days standby, 3. Support plug-in / card (32G) / Bluetooth mode, 4. Barrier-free 10m Bluetooth docking, fast Bluetooth connection, [Apple Android compatible], 5. The speaker unit has a diameter of 40mm. Specification Transmission range: 10 meters Function: call function, support music, multi-point connection Bluetooth protocol: 5.0 Channel: Stereo How to use: head-mounted Package Content : 1 * Bluetooh Headset 1 * USB Cable 1 * User Manual 1 * AUX cable