Product Parameters:Bluetooth Solution: Jie Li SolutionBluetooth Version: V5.0+EDRHeadphone Capacity: 40mahCharging Compartment Capacity: 250mAhUse Distance: 10mCharging Time: About 1 Hour For Earphones And 2 Hours For Charging CompartmentUse Time: 2-3 Hours Listening To Music With Headphones, 35 Hours Standby TimeWaterproof: IPX7Packing List:Earphone*2Charging Compartment*1Charging Cable*1Manual*1