Bluetooth version: 5.0Connectivity: wirelessApplication: music, callColor: black, whiteHeadphone battery: 30mahMusic time: 2-4 hoursStandby time: 120hCharging time: 1hBattery box: 400mahBluetooth: yesTransmission distance: 15mSpeaker: F13 composite titanium membrane speakerThe Package includes:1 pair of bluetooth earphones (left and right earphones),1 x USB charging cable1 x user manual