Edifier USA Tick Tock Retro Multifunctional Alarm Clock MF240Reto White 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)