Edifier MF240 TickTock SD/USB/FM Radio Digital Alarm Clock Retro MP3 Player SD card reader and USB input port LCD display screen for SD/USB/FM/AUX/Alarm/Time & Date Alarm clock function with the choice of audio from SD, USB (Flash/Thumb Drives), FM or Auxiliary inputs Auxiliary 3.5mm input jack for additional audio connectivity FM radio function (24 preset channels)