Specifcation: USB-C

Earphone Fit: Half-in-Ear

Wireless Transmission Distance: 10 m

Input: 5V 1A

Battery Capacity: 30mAh

Charging Case Battery Capacity: 350mAh

For Music Time: About 4 hours

Talking Time: About 3 hours

USB Charging: 2 hours

Standby Time: 10 Months