Speaker Product description: 2.1 channel, wooden structure designed covered by silvery, black Volume, super bass, power on/off control Speaker driver: subwoofer: 5.25", satellite: (3"+1")x2 Output: 30w + 15wx2 Size: subwoofer:166x274x300 (wxhxdmm); satellite:92x182x129 (wxhxdmm)