Features:Compact size 4-channel mixing console with LED display, lightweight and portable, suitable for home karaoke, network live broadcast, music recording, etc.2TR IN RCA jacks can be used to input stereo sound source, 2 STEREO(L,R) IN jacks are used to connect external recorder, with 2 MAIN OUT(L,R) jacks for stereo output.With GAINPAD, EFF, PEAK, HIGH frequency, LOW frequency, LEVEL control knobs, allowing you to modulate more excellent sound effects.Connect to a computer with USB cable via sound card jack, the signal from the STEREO L/R buses is output to the computer. It can play the signal from the computer to the MP3 buses.Other features: +48V phantom powering is supported, USB port for connecting MP3 player, 3.5mm headphone jack for monitoring, also support connect with your smartphone via BT.Specifications:Brand: MusladyModel: L-4Color: WhiteMaterial: PlasticPower Supply: +48V phantom power or power adapterPackage Size: 21 * 17 * 7cm / 8.27 * 6.69 * 2.76inPackage Weight: 696g / 24.55ozPacking List:1 * Mixing Console1 * Power Adapter1 * User Manual