Emerson Plug 'N' Play Karaoke Microphone System with 150-Song DVD (MM221) Plug 'N' Play Karaoke Microphone System converts your TV and DVD player into a fully functional and easy-to-use karaoke system No assembly required, just plug in Features digital echo controller for added effects, and volume control for the perfect dynamics Great for the whole family Includes: RCA Cables, Dual RCA Adapter, Microphone, AA Battery for Microphone, and 150-Song DVD