Name of the product: 5.1 speaker system 6.5-inch driver unit Power Source: DC 12V MEAS: 1062*346*164 + 373*263*397 mm Accessories: USB, FM, Bluetooth, DC12V CIRCUMSCRIBED CLAMP, MANU, and REMOTE Driver Unit: 3 INCH * 5 + 6.5 INCH 35W + 10W * 5 power