VocoPro DA-X10Pro Worlds First Karaoke Mixer with Vocal Enhancer Digital Echo, Repeat and Delay controls add depth to Vocals. Full function Remote Control for ease of operation Three Microphone Inputs with individual Volume controls Shipping Dimensions: 16" L x 21" W x 7" H Weight: 13 lbs Vocal enhancer with High/Low Contour, Frequency and Process controls for optimized vocal reproduction and rich, vibrant sound 13-step digital key controller transposing the key of source music