Working type・USB/PSWired length・1.6mFeatures:silica gel material・waterproof、dust proofFunction・support PC、 cellphoneFit for PC system:windows/XP/vista/win7/MACFit for cellphone system:Android(adapter needed)Multi-language:supportergonomics:supportColor:black、 blue、pinkPower button:noUSB charging:noCertification:FCC、CE、ROHS・SRRCSize:405 x 170x 15mmWeight: 215g