... sound system M-998L1 1.Output power:40W+15W*3 2.USB,SD,FM and Karaoke 3.CD,MP3,FM ... station show on display Newest 3.1 surround sound system speaker ... M-998L11.Output power:40W+15W*32.USB,SD,FM and Karaoke3.CD ... home theater system speaker M-998L1FUNCTIONUSB,SD CARD READER,FM, KARAOKE, RemoteOutput power40W+15W*3Drivers6" subwoofer +3"* ...