... function:volume,FM frequency TF card,USB,AUX Decoder Board with FM radioStrang decoder: TF card,USB,AUX ... MP3 Decoder Board, pcb board &ABS board, fm radio and digital screen display, with ... VOL+”: Can set VOL+, TIME+, ALARM+, and POWEROFF+.4.“MODE”: When this player works with SD card and ... you press this button. SD card decoder board: SW-005 TF card,USB,AUX Decoder ...