Chip solution: JL6983
Bluetooth version: V5.3
Lithium battery capacity of earphone: 50mAh*2
Charging case battery capacity: 400mAh
Input: Type-C 5.0V--0.1A
Transmission distance: 10M
Driver unit: Φ16.20mm±0.2mm
Impedance: 16Ω±15%
Charging compartment can be charged 3~4 times
Frequency Response: 20-20KHz
Music playback time: 7~8h(under 50% volume status)
Charging time of charging case: 2h