Blueooth V2.1+EDR
Talking time: Up to 6 hours
Standby time: Up to100 hours
Battery: 3.7V/50mA Li-polymer
Charging time: Up to 2 hours
Working range: Up to 10m
Sensitivity: >-85dbm
Temperature: -20-60 C
Dimensions: 36*16*7mm
Weight: about 6.5g

Colorful faceplates