... board, SD, USB/mobile/MP3 player decoder board, with FM radio, LED power display, support remote control, ectKey function: ... No.: SW-502Specifications Shape oblong Control Provided LED Voltage 5V FM frequency range 88MHz-108MHz Function MP3 player+ FM radio Accessories ... D StaffProduct Line: mini Card& USB reader speaker, portable FM radio speaker, mobile speaker, active speaker, tower speaker, stage ...