Wisdom RM 100

Bluetooth Version-  Bluetooth V5.3
Horn specification:   10mm/22Ω
Frequency response-: 20-20KHz
Output power:  20mW
Transmission distance(barrier-free): 10m
Signal-to-noise ratio: 103±3dB
Distortion degree: 1%
Battery specification:: 3.7V/300mAh without protection board
Charging time: 1-1.5 hours
Playing time: about 35 hours
Standby time-: about 400 hours
Head sensitivity-: -40dB±3dB
Support:a2dp 1.3.2\avctp 1.4\avdtp 1.3\avrcp 1.6.2 hfp 1.8 spp 1.2\rfcomm 1.1\pnp 1.3\hid