CAVS Laptop Karaoke Player PO101 CAVS Karaoke Laptop PO 101 is a 5-in-1 karaoke player that begins with Control Panel where the songs, interlude music, background pictures, messages, and advertisements are loaded. 3D Customer Interface provides easy access to find and select the songs by title, artist, or index. HDMI Lyrics screen for TV plays songs of CD+G, MP3+G, Super CD+G, AVI, and MP4 formats. Mixing Console to control the Music volume &amp; balance, Microphone volume, echo, and reverb. *CAVS DK3 Mixer required. CAVS RS Server screen to connect wirelessly to the E-Songbooks, cell-phones, or tablets. *E-Songbook sold separately.