... quality of 4.1 home theater speaker with USB,SD card reader and FM radio Picture Output Power 30W+10W*4=70WDriver ... 5.25inch*1 Satellite 3inch*4Material Wooden+PlasticFunction USB,SD card reader FM radio and remote controlPacking Color box 375*450*470mm ... ,laptop,DVD,VCD,CD ,MP3,TV,Mobile phone.Accessaryies3.5mm standard stereo audio cableUser manualAfter service card Best quality of 4.1 ...