K19

chip solution:JL6983D
Bluetooth version:bluetooth 5.02technology.
support:HFP, HSP,AVRCP,A2DP,3.2bits DAC,AAC
water resistant:IPX4
Speaker size: 6.0mm（graphene dynamic)
Impedance: 16Ω+/-15%
Sensitivity: 97dB±3dB
Battery capacity: 55mAh(Both side).
Battery capacity charge case:500mA.
Battery life: hours:26 hours
Playback time: 6hours