Singing  Machine SMG-903CD/CD+G Karaoke System with USB and SD/MMC Card Slot Plus Rear Projection Speaker, Black Karaoke system with backlit 5.5-inch monochrome monitor for following along with lyrics SD/MMC memory card slot and USB port for connecting thumbdrives; MP3 playback functionality 2 microphone jacks with separate volume controls--great for singing duets Audio input for connecting iPods, keyboard, or guitars Includes wired microphone and sampler disc