Bluetooth Version:2.1+EDR                                                                                  

Support A2DP ,ACVRP,HSP and HFP
Frequency range:2.4GHz-2.48GHz                                                              

Transmission power:class2
Transmission distance:10M
Operating voltage:5V                                                                                   
Charging time:1-2 hours
Talking time:10~12 hours
Standby time:240 hours