Chip solution: ATS3015
Bluetooth version: V5.2
Loudspeaker units: 12mm
Impedance: 16Ω±15%
Frequency Response: 100-10KHz
Lithium battery capacity of earphone: 72mAh*2
Charging case battery capacity: 550mAh
Input: Type-C 5.0V--0.1A
Sensitivity of MIC: -42dB±1dB, MEMS Microphone
Transmission distance: 10M
Charging compartment can be charged 3~4 times
Music playback time: 5~6h(under 60% volume status)
Charging time of charging case: 1.5h