... board) Function and features:SD/USB MP3 Decoder Board, fm radio and digital screen display, with AUX line inremote control, and ... &D StaffProduct Line: mini Card& USB reader speaker, portable FM radio speaker, mobile speaker, active speaker, tower speaker, stage speaker, ect ... .We can add USB/SD function and FM radio on multimedia speaker, mini speaker, active speakerRemarks: 1) More new ...