1.USB,SD card reader 2.FM radio 3.OEM ... 5.Strong bass and perfect sound system Best quality of 4.1 home theater speaker with USB,SD card reader and ... Output Power 30W+10W*4=70WDriver Units Subwoofer 5.25inch*1 Satellite 3inch*4Material Wooden+PlasticFunction USB,SD card reader ... standard stereo audio cableUser manualAfter service card Best quality of 4.1 home theater speaker with USB,SD card reader and ...