Singing Machine SMM-117 Karaoke Accessory - DVD Karaoke Converter - SMM-117 Turns any DVD player into a karaoke system Acts as a bridge between your TV and DVD player and allows scrolling lyrics to play on your TV Features microphone and echo control; 2 microphone jacks Uses 9V battery (not included) What's in the Box: Converter, AC adapter, 3.5mm adapter, RCA cables, DVD demo disc, instruction manual