Features 1 Provide stable and seamless connectivity with bluetooth 5 0 and high sensitivity antenna enabled devices up to 33 feet away which also ensure low latency and low energy features during data transmission 2 The earbuds automatically turn on and connect your smart phone when removed from the case automatically turn off and charge when put back in the case Also the headphones can be used to answer reject calling skip play pause songs and activate voice assistant such as Siri 3 Smart Case Auto power on when take it out from case Auto power off when put it back to the case for charging Specification Model Number TWS JH 9106Product Parameter1 Headphone ParameterEarphone Battery Polymer Lithium Battery 50mAh Typical Value bluetooth Version 5 0Operating Voltage 3 2V 4 2V bluetooth Frequency 2 4 2 48GHz bluetooth Transmission Distance 10MAudio transmission format A2DP HFP HSP AVRCP Talking time 4hoursMusic time 4hours Standby time 3 months2 Charging Box ParameterCharging Box Battery Polymer Lithium Battery 450mAh DC Charging Current 250mADC Charging Voltage DC 5V Operation Left Earbud Pause Play One TouchNext Double PressSiri Long Press for 1 SecondCall Triple Press prompt tone redialing Hang Up One Touch prompt tone call ended Right Earbud Previous Double PressVolume One TouchVolume Long Press for 1 SecondCall Triple Press prompt tone redialing Hang Up One Touch prompt tone call ended Package Included 1 x TWS bluet