Bluetooth version: 5.0
Bluetooth Class(1/II):Class II
Bluetooth Profile:A2DP，AVRCP，HFP，HSP
Speaker Type: Bone conduction technology speaker, 1w dual speaker
Receiving Sensitivity:88dBm
Impedance: 8Ω
MIC:-42db MEMS MIC
Frequency range:20‐20KHz
Play time: 4H
Standby time: 10 days
Transmit range: 10M (33feets)
Battery:120mAh Power battery
Charging port: micro USB
Weight: 26g
Sizes: 144x116x42mm