Professional Digital Echo with Separate Repeat and Delay Controls per Mic channel3 Microphone inputs w/ individual Volume controls and Echo On/Off SwitchesVocal Cancel and Vocal Partner features to delete/add guide vocals on Multiplex Karaoke Tapes and CD'sMusic Master/Bass/Treble controlsMic Master/Bass/Treble controlsSource/Left/Right Level Output DisplaysCD+G and DVD input/output jacksExcellent add-on for expanding karaoke systemsIncluded mounting bracket's for rack mountingCompact 1-space design saves valuable rack space110/220V AC Toggle switchDimensions (W x D x H): 19" x 6" x 1 3/4"Shipping Weight: 7 lbs