Pcb with LED display -support SD / USB Card Reader,FM radio,LED display -MP3 decoder,pcb assembly -DC 5.0V,IN ... -power on/off Pcb with LED display(Mini audio board) Function and features:MP3/SD/ ... speakerRemarks: 1) More new designs are on the way 2) We do best service to every customer, the more ... you have any problems, please feel free to contact with us.pcb Pcb with LED display