Mini Invisible New Wireless Bluetooth Headset

Charging port: Micro-USB
Wireless frequency: 2.4GHZ
Battery capacity: earphone 50 mAh, charging compartment 2200 mAh
Working temperature: -10-50°C
Charging voltage/current: 5V/1A
Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
Transmission distance: 10 meters
Power consumption: about 80 hours of music playback; about 100 hours of continuous talk
Charging: about half an hour
Charge the headset about 22 times