Acesonic KM-201 HDMI Karaoke Audio Mixer Professional echo processor with professional grade Yamaha Reverb technology. Perfectly blends microphone voice and the accompaniment. The professional echo effect can be adjusted depending on the occasion and your preferences making your voice sound clear with minimal noise and distortion. Dual microphone interface with individual volume control supports a chorus or duets. Digital to Analog converter enables you to input via HDMI and output HDMI and L/R RCA Audio together.