Bluetooth version: JR V40.
Work Frequency :2.4 GHz
Operating distance:10 M
Charging time: 1.5hours
Work time: 3-4 hours
Duration: 4 hours
Standby time:80 hours
Charging voltage: DC5V
Battery capacity: 80 mah
Support systems: iOS, Android
Working environment: -10～60℃
Color: white , black,black + red,black+green
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