With stable quality, portable, artistic, small and exquisite. Suitable for company, stage, home, KTV rooms, etc. Connect the front of amplifier to input and power control the host.Dual Microphone inputs, video input and sound output for video signal, volume can be adjusted individually.Reverberation delay function and audio inputs/outputs for left/right channel Volume frequency regulation.Volume frequency regulation.Color: BlackPlug Type:US Plug,it applies to Canada, India, Japan, Mexico, Thailand, the United States, the Philippines and so on.Model: N-3material: metalWorking Voltage: 9V-12VTotal Harmonic Distortion: Less than 0.5% @ 1KHzItem Size: 14 * 8.5 * 4cm / 5.5 * 3.3 * 1.6inItem Weight: 170g / 6ozPackage List:1 * Karaoke echo sound mixer1 * plug1 * audio cable1 * video cable