3.1 surround 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 ... FM, KARAOKE, RemoteOutput power40W+15W*3Drivers6" subwoofer +3"*3 satellitesP.M.P.O2000WFrequency Response 40Hz-20KHzImpedance4 OHMS/ ...