Brand New And High Quality.PCB 2mm thick double-sided gold-plated plate to ensure good current size by performance.The ratio of signal transmission distance directly with the silver signal line installed to shorten the N times!Only 5 wiring and panel control switch is connected on the realization of the function control relays and LED display than similar products reduce doubled wiring compact ultra-thin chassis can pretend to be the more convenient installation! Is assembled fever amplifier preamp best choice!For buyers convenient installation the terminal small white board and LED are not welded.Note:The selector switch screw of the signal board is 8.8MMTo facilitate installation the terminal small white board and LED lights are not on welding just for DIYTechnical parameters:Operating voltage: AC (AC) - 12-15VPCB dimensions: 98 x 42mmSelector switch board size: 60 x 42mmColour: blackMaterial: plasticPackage Contents:1 * Audio Input Signal Selector SetOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.