Warm Tip The latest version, specially designed an input impedance switch to select between 1K standard and 4.7K, can match different sound sources well.FeaturesMC5 stereo audio mixer with 4channel 3.5mm inputs and 1channel 3.5mm output, which can mix signals from CD players, instruments, portable recording devices, video playback devices and so on.Mini size with exquisite appearance, passive circuit design will not interfere with the sound quality. And MC5 can work without battery or ether power, very convenient to carry and use anytime anywhere.With a master output volume knob and four independent input volume knobs, the 4channel input has no interference with each other. Provides the highest sound quality even at maximum output level.ParametersMaterial PCB acrylic caseDimensions LWH 83.55421mm3,292,130.83in excluding the buttonNet weight 93g0.21lbPackage weight 132g0.29lbPacking list1MC5 sound