Product name: Lanxian USBluetooth version: V4.1Support: A2DP, AVRCP, HSP, HFPDrive unit: 059mmx1.040mmx2Output power: 2x2.5W, 5WWireless distance: 10mFrequency response: 50Hz-22KHzAudio input: VRMS≤1VAudio decoding: 24Bit, 48KHzDynamic range: 96dBTalk time: about 5-7 hoursMusic playback: about 5-7 hoursStandby time: about 1000 hoursCharging time: about 4 5 hoursCharging port: Micro-USB