Speaker rated power: 3MWTalk time (medium volume): 3-3.5hStandby time: 120hBluetooth version: 5.0+edrPower consumption: 16-21AHeadphone charging time: 1HCharging compartment battery capacity: 350ALithium battery energy content (watt hours): 0.203whMusic time (medium volume): 3.5hBluetooth tablets: LanxunTransmission distance (m): 7-10 miInput power: 93mWHeadphone battery capacity: 55ABattery voltage: 3.2-4.2v