Charging case instruction
Bluetooth version: V4.2
Charging case capacity: 800mAh
Charging voltage: 4.75V-5.75V
Working voltage: 3.0V-4.2V
Earphone battery capacity: 3.7V 40mAh
Music play time: 2 hours
Degree of distortion: <0.1%
Antenna frequency: 2402MHz-2480MHz
Supported Protocols: HSP/HFP/A2DP/AVRCP
Frequency reaction: 20Hz-20kHz
Full charging time: 80 minutes
Working scope: 10 meters (direct distance without barrier)
a.If the battery is more than 20%, the indicator is blue.
b.If the battery is less than 20%, the indicator is red.
c.If the battery is less than 1%, the indicator blinks red light for 3 times(in this situation, it cannot be charged in the case)
at this time, indicator blink blue light(if the charging case battery is less
than 20%, the indicator will become red), the indicator will turn off after
earphone is fully charged.