Version 4: Bluetooth
Frequency: 2.400-2.480GHz
Operating range: 10 meters
Color: Black / White / gold
Weight: 8g
Battery capacity: 90mA
Talk time: 6 hours
Music time: 5 hours
Standby time: 240 hours
The charging standard: Micro USB, DC 5V 100mA
Charging time: about 1.5 hours