2.1 Multimedia Speaker 1,RMS: 30W+10W*2 2,USB/ SD.FM Function 3,Blue VFD and digit tube ... screen. 4, Karaoke function VFD Display USB/SD Karaoke 2.1 Multimedia Speaker Description:1,With usb,sd card read function, play mp3 type music ... .5,Durable wooden surface and plastic pannel.6,Compact with PC, VCD, DVD, IPOD, MP3/4, directly and suitable to all ...