K3

chip solution:AB5616
Bluetooth version:bluetooth 5.1 technology.
support:AAC,HFP, HSP,AVRCP,A2DP,
water resistant:IPX4
Speaker size: 13mm（ dynamic)
Impedance: 32Ω+/-15%
Sensitivity: 103dB±3dB
Battery capacity: 35mAh(Both side).
Battery capacity charge case:400mA.
Battery life: hours: 20hours
Playback time: 5~6hours