... repeat,mode Decoder Board with FM radio for SD card,usbFunction and features: SD/MMC/USB Card MP3 Decoder Board, pcb board, fm radio and ... digital screen display, memory function with remote control, and so on.Product No ... channels.2.“VOL-”: Can set VOL-, TIME-, ALARM-, and POWEROFF-.3.“VOL+”: Can set VOL+, TIME+, ALARM+, and POWEROFF+.4.“MODE ...