Features 1.EASY TO USE: No batteries or other power source required. The stereo mini mixer can also be used as a 1 In 4 Out stereo splitter with clockwise volume adjustment. 2.INPUT AND OUTPUT: 4 stereo RCA inputs and 1 stereo RCA output OUTPUT: for connecting the RCA jack to a mixer output or other output device; IN 1-4: controls the signal level from inputs 1-4. 3.WIDE APPLICATION: Stereo four channel passive mixer for extended control of tuning mixing instruments CD players tape decks computers mobile phones tablets etc. 4.SUPERIOR PERFORMANCE: Mini mixer produces the highest sound quality at all output levels boasting ultra low noise operational for outstanding sound performance. Distortion free and easy to set up. 5.CONVENIENT: The modern design of the passive mixer looks great on any desktop with large controls that are easy to use and small enough to avoid tangles of wires clothing etc. Specification Item Type: 4 Channel MixerMaterial: MetalModel: CX400Colour: BlackRange of Application: For Mixing Instruments CD Players Tape Players Computers Mobile Phones Tablets etc.Input Impedance: 10K Ohms to 47K OhmsOutput Impedance: 2.5K Ohms to 10K OhmsGain: -12dB Maximum Package List 1 x Mixer1 x Manual