This sound mixer is stable, lightweight, small and elegant, which is suitable for company, stage, families and KTV rooms.Features: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.Specifications:Power Supply: US plug (Input: 110-240V, 50/60Hz; Output: 12V, 250mA)Working Voltage: 9V-12VTotal Harmonic Distortion: <0.5% @ 1KHzColor: Silver, Gold, Black(Optional)Item Size: 14 * 8.5 * 4cm / 5.5 * 3.3 * 1.6inItem Weight: 170g / 6ozPackage Size: 30.5 * 19 * 5.8cm / 12 * 7.5 * 2.3inPackage Weight: 509g / 18ozPackage List:1 * Karaoke echo sound mixer1 * Power adapter US plug1 set of audio cable1 set of video cable