Bs Spy v2.1 Car Bluetooth Device with Car Charger  (Black)

All buttons and ports:-Music Play / Pause button??Bluetooth Standard: Bluetooth Version 3.0 +EDR??Working Frequency Range: ISM 2.4Ghz to 2.48Ghz??Bluetooth Profile: Speaker phone & hands-free profiles??HSP and HFP protocol Transmitting Power: Class 2.Wireless Connecting Distance: 0 ~ 10 meters??Charger voltage: DC 5.0V, 500mA??Battery: 800mA??Charging Time: About 3 hours??Speaker Working Time: About 17 hours??Standby Time: About 100 hours??Dimensions(L x W x H): 12cm x 6cm x 1.3cm????Net Weight: 115g??Approved: CE / FCCHow to use:??Press the phone button on the main unit for about five seconds to hang listen, suggesting the power is turned on, turn on Bluetooth Bluetooth power on the host after power is turned on using a mobile phone search BT828, pairing??Telephone answering button, the music played on an??Phone hung listen button, music play the next song??Volume control (turn left turn up, turn right tone small)??Music Play / Pause button??Speaker??Microphones