Kids Karaoke Sing Along Stage Microphone - Flashing Lights with Auxiliary Cable line-in to Connect to Your Mp3 & Smart Phone/Tablet - Adjustable Mic Stand Adjustable Height, Built In Phone/MP3 Player Stand( Phone/MP3 Player not included) Sing along detachable karaoke microphone and Speaker with Volume Control Knob! Requires 3 AA Batteries to run (not included) Plug In your MP3 Player, Phone, etc. to Play and Sing Along to your Own Tunes! Plays many different melodies