Bluetooth Version	V4.0
Bluetooth Chipset	BK
Bluetooth Profile	HSP, HFP, A2DP
Input voltage	5V
Bluetooth Frequency	2.4-2.48GHz
Impedance	32Ω
Charging Time	2 hours
Usage Time	5 hours
Standby Time	180 hours
Battery Capacity	250mAh
Battery Type	Li-Polymer
Operating Distance	10m