... ,FM radio,LED display -MP3 decoder,pcb assembly -DC 5.0V,IN -power on/off Pcb with LED display(Mini audio board ... Brief IntroductionFounded: 2000Total Staff: 51-100,including around 5 R&D StaffProduct Line: mini Card& USB reader speaker, portable FM radio ... have any problems, please feel free to contact with us.pcb Pcb with LED display