Model: Pro 7Wireless version: V5.0+EDRWireless frequency:2.4GhzTransmission distance: 15mCharging Voltage/Current:5V/1AStandby time:120 hoursSupports protocol: A2DP1.3/HFO 1.6/HSP 1.2/AVRCP 1.6/D11.3For more info visit : Portable Media Player,Mobile Phone,Aviation,COMPUTER,Dj,Gaming,Sports,Audiophile,Travel,