1.Version/BT chips 5.1/JL6973D4 ,Bluetooth distance:10m.Support protocols A2DP,AVRCP,HSP,HFP
2.Speaker power :3mW,resistance : 32Ω
3.Battery/charge case capacity lithu-polymer /180mA/25mA ,Charging time :1H ,Call time :4H
4.Product weight:43g,
Product size:140X100X27.5mm