VocoPro DA-2050K Digital Karaoke Mixer w/ Key Control & Digital Echo Band. Comes with remote control. This little power pack will give you everything that you need to mix your Karoake in your home. With three mic inputs, your friends and you will be able to sing the night away! Digital Key Control (+4/-4 1/2 Step Key). Multiple A/V Source Selection (4 Audio – 3 Video). 3 Microphone Inputs W/2 Key Control Jacks. 3 Video Outputs. Microphone Bass/Treble Controls. Pre-Out / Record Out. Vocal Partner Function. Rotary Servo Music Volume Control. Full Function Remote Control. 2 AC Outlets/Unswitched/ (200 W). Frequency, Resp=20-20,000 HZ3db. Echo Delay Time 100 MSEC-200 MSEC. Dimensions: 17″ (W) x 12 1/2″ (D) x 3 5/8 (H).