Play tape, Listen AM/FM radio,Convert the tape music to mp3 and save it to Micro SD card Record your voice or environmental sound, audio program and save to Micro SD card Playback MP3 music,Play digital music files in Micro SD card Build-in High performance dynamic speakers AA*2 or 5V DC power supply,3.5mm earphone jack,5V DC jack,122(L)*91(W)*39(H).