Brand Djack Speakers Others Warranty Period 6 Months DjackHome Theater with Bluetooth System Dj-D3L Built-in USB and SD memory card function, Support MP3 music formathome theater system with subwoofer and FM RadioWith Karaoke functionBlack colourVolume, bass, treble, echo, mic-volume separately controlCompatible with PC/VCD/DVD/CD/TV and other audio input Bluetooth function. Speaker-K3M On/Off Power Switch USB & SD Input(MP3 Player) Three Small Speaker Drive Units: 6.5"*1+3"*3;6.5"=35W;3"=5W With FM Dimensions: 442(L)x373(W)x387(H)MM Inpedance: 8 ohms Total Output Power: 60W Frequency Response: 38HZ-20KHZ