Product Details:Chip solution: Zhongke Lanyu double callBluetooth version: V5.0 double callColor: black, whiteHeadphone capacity: 50 mA with protection boardCharging compartment capacity: 300 mA with protection boardSpeaker: 32 ohm speakersCharging time: 48 minutesUse time: 5 hoursStandby time: 300 hoursCharging bin weight: 27gHeadphone weight: 3.7gBluetooth compatible: IOS Android ectTake out the headset in the charging compartment and turn it on automatically. Put back the headset in the charging compartment to automatically shut down.Package contents:Headphones*2Charging bin*1Charging cable*1Manual*1