Product Feature:
bluetooth V5.0 chip,stable singal transmission.
Bluetooth transmission distance: 10 meters.
only 5g weight,stable and comfortable.
Battery Capacity: 50mAh
Working voltage: 3.7V
Charging voltage: DC5V
Charging Time: about 1.5 hours
Talking time: about 5-8 hours
Music time: about 5-8 hours
Standby time:about 40 hours
Package Content:
1 x Bluetooth Earphone
1 x USB Charging Cable
1 x User Manual