Item Type: Audio MixerMaterial: Acrylic, MetalColour: Black 1Multi Usage: The mixer is capable of mixing signals from CD player, musical instrument, portable recording device, video playback device, and etc. 24 Input 1 Output: With 1 main output volume knob and 4 independent input volume knobs, the 4 inputs do not interfere with each other. 3Good Sound Quality: The mixer with excellent performance can provide the highest sound quality even at maximum output levels. 4Passive Circuit Design: The passive circuit design of the mixer will not add or subtract audio signal, outputs stably. 5Small and Portable: The mixer is compact in size, and can easy to carry around, adopts premium shell, sturdy and durable.