Bluetooth version:V 5.3
Bluetooth solutions:JL6973D4
Support Bluetooth profile:A2DP,AVRCP,HSP,HFP
Bluetooth working frequency:2.402GHz-2.480GHz
Bluetooth range:10M
frequency response:50Hz～20KHz
Speaker type:Φ8mm@32Ω
MIC:-42dB+-3
Battery:3.7V, 30mAh（400909）
Music time:4 hours
Talk time:4 hours
standby time:40 hours
standby time with charging case:200hours
Charging case:200mAh（701230）
Charging time:2 hours
