Specification :

* BT Version:5.0                                      

* Chipset: JL                                          

* Support:HFP,HSP,A2DP

* Max playing time :    About 4-5 hours

* Stand by:4-5 days

* Distance 10-15Meter                              

* Battery Capacity:  30  MAH

* Battery Capacity of charging box: 260mAh 

* Speaker:6mm 

*Sensitivity:98dB+/-5dB

*Frequency Range: 20Hz -20KHz