Features: Multiple Inputs and Outputs: Supports 3-way input and 3-way speaker output, realising flexible selection of switching from multiple source to different speaker. Comparator design: With comparator losslessly in signal transmission process, providing highly quality sound experience. Passived amplifier: can be used without external power, simple and fast, no interferences, to ensure transmission. Switching distribution function: can simultaneously control intelligents switching of multiple inputs and speaker outputs to meet diverses needs. For practitioners who need to switches and distribute complex equipment in studio mixing room. Specifications: Item: Signal Selector Switcher Type：3 Inputs and 3 Outputs Size：about 240x90x55mm/9.45x3.54x2.17in Package Includes: 1PCS Signal Selector Switcher note: Due to problemsof lighting effect and shooting there mightbe certain tolerances in product, please understand. Please allow 0-1cm error due to manuals measurment