This is a good working Karaoke digital echo stereo mic mixer model DA-221 Has 4 microphone inputs and comes with the 12 volt power supply. Its 16 1/2 inches wide and 11 1/2 inches front  to back, and 2 inches tall.Bid early no reserve. Buyer can pick up or pay for shipping in the lower 48 states. Will ship WORLDWIDE for extra.