Mini Invisible New Wireless Bluetooth Headset $ 13.51 Charging port: Micro-USB Wireless frequency: 2.4GHZ Battery capacity: earphone 50 mAh, charging compartment 2200 mAh Working temperature: -10-50C 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
