Chip solution: JL6973D4

Bluetooth version: V5.3                                                           

Lithium battery capacity of earphone: 30mAh*2

Charging case battery capacity: 300mAh

Transmission distance: 10M

Driver unit: 10mm±0.2mm

Charging compartment can be charged 3~4 times

Frequency Response: 20-20KHz

Music playback time: 4~5h(under 70% volume status)

Speaker impedance: 32ohm±15%

Charging time of charging case: 1.5h