Four 1/4 Microphone/Instrument Inputs for Maximum Diversity. * Built-in Multi-Format Player & USB Port/SD Card Reader * Supports DVD, CD, CD+G, Mp3 & Photo CD Formats. * Digital Key Control for Changing the Key of Any Disc & USB Port/SD Card Played in the Multi-Format Player. JAMCUBE - Without wireless module or SD recorder module * Weight - 33 lbs