Product information: 

Color: black, white

Bluetooth version: V5.0

Standby time: 100 hours

Talk time: 10 hours

Listening time: 10 hours (Bluetooth 5.0 low power consumption)

Battery specifications: 601515: 100mAh

Battery voltage: DC 5V

Working voltage: 3.7V

Charging time: 1.5 hours