DIMENSION (W x H x D) Woofer: 160 x 240 x 255mm Satellite: 100 x 170 x 108mm DRIVE:Woofer: 4" Satellite: 3" Full Range x 2 POWER OUTPUT: Woofer: 20W Satellite: 10Wx2 CONTROL: Power,Volume,Treble,Bass&Remote control FEATURE: with Remote control,SD/MMC Card Reader,USB & Radio function PACKING: 4sets/ctn/4.13cuft