Sing like Alvin or a Chipette with USB microphone. Also includes 6.3mm microphone jacks for singing with real voice. 150 Songs built in, but room for hundreds more, SD card slot, MP3 & lyric Karaoke player, iPod compatible. USB Port charger for iPod using standard iPod cable.(cord not included) Cradle for iPod or personal players. Clock and alarm. Microphone included. Operates on 120V or more than 36 hours with 3 "C" batteries (not included).