Bluetooth Version/chipset：JL：6983
Supported protocols：HFP,HSP, A2DP, AVRCP
Transmission Distance：10m
Working Voltage：3.7V
Working Time : 5 hours
erabud /charging case Battery (mAh)：30mAh/3.7V 320mAh/3.7V
Charging Time：≈1H
