Singing Machine SMD-568 MP3 and CDG Recording Karaoke System with SD and USB Slots - SMD-568 Karaoke system enables you to record performances in MP3 to USB thumbdrive or memory card SD/MMC memory card slot; MP3 playback functionality 2 microphone jacks with separate volume controls--great for singing duets Auto voice control; balance and echo controls; audio and video output Includes wired microphone and sampler disc