Chip: Jieli 6973D4
Bluetooth version: V5.3
Headphone battery capacity: 40mAh
Battery capacity: 300mAh
Talk time: about 4.5-5 hours (70% battery)
Music time: About 4.5-5 hours (70% battery)
Transmission distance: 10m (without obstacles)
Charging time: ≤1.5-2 hours Charging voltage: 5V=200mA
Material: ABS+PC
Color: Black + dark blue white + light blue rice white + coffee coffee