... cup+USB Charging+set off+boxKeys layout76 keysWorking wayBluetooth wirelessCharacteristicsMedical Silicone material,power saving,waterproofing,dustproofing,and easytakingFunction CharacteristicsSupporting PC,Mobilephoneand ... in charging Li-ion batterySurface ProcessEco-friendly,high strength,high elastic siliconeColour matchingOptionalUSB ChargingYesCertificateFCC,CE,ROHS,SRRC packing sizeOut-box ...