VocoPro GigMaster Pro 180W  CD Karaoke System with Guitar and Keyboard Input 180-watt karaoke system with multiformat DVD/CD player, instrument mixer, and amplifier Compatible with CD, DVD, CDG, VCD, MP3, CD-R, CD-RW, and JPEG formats 1/4-inch guitar and keyboard inputs let musicians play live karaoke soundtracks 13-step digital key controller alters key of background music to match vocal range Stored in 6-speaker road cabinet with casters and handle; 23.25 x 34 x 16.25 inches (W x H x D)