Feature: 1. Compact size karaoke sound mixer, lightweight and portable. 2. Dual microphone inputs, and supports mic volume adjusting individually. 3. With TONE and ECHO control knob for awesome vocal enchancement and sound shaping. 4. RCA audio input(L \u0026 R) and output(L \u0026 R)jacks for connecting audio source and speaker/amplifier. 5. Suitable for company, stage, families and KTV rooms, enjoy singing and have fun with it. Specification: ☆ 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-12V Total Harmonic Distortion: <0.5% @ 1KHz Color: Silver, Gold, Black(Optional) Item Size: 14 * 8.5 * 4cm / 5.5 * 3.3 * 1.6in Item Weight: 170g / 6oz Package Size: 30.5 * 19 * 5.8cm / 12 * 7.5 * 2.3in Package Weight: 395g / 13.9oz Package List: 1 * Karaoke echo sound mixer 1 * Power adapter US plug 1 set of audio cable 1 set of video cable. Package List: 1 * Karaoke echo sound mixer 1 * Power adapter US plug 1 set of audio cable 1 set of video cable Note: Matters Needing Attention:1. The product only has a mixing effect and does not support functions such as sound amplification to change the sound quality effect;2. Do not place the product near high-power appliances/strong magnetic appliances to avoid sound interference from electric/magnetic fields;3. Try to use branded audio cables as much as possible to avoid strong interference and ensure that the connectors are not prone to problems. Microphone issue;4. Capacitive microphones are not supported.