All parts of this product are original authentic, , pure quality; the use of high quality original parts and components, not only the safety and quality are guaranteed, long service life, more important is to make the actual performance to achieve the design goal of a strong . The pursuit of first-class quality is our consistent aim.Electrolytic capacitor signal The main circuit using Taiwans name, the capacitor using dedicated electrolytic capacitor capacity 330UF, to a strong stream of .PCB 1.6mm thick double-sided plate, 2.0 oz copper thickness, the whole process of tin, to the size of the current good pass performance. First-class PCB quality.Signal reception using CS8412, the signal stability analysis of good!Input voltage: DC12V, (inside + outside -)Switch: optical coaxial switchPCB size: 81 * 59MMcolour:redMaterial:Metal +pcPackage Contents:1 * Audio Decoder BoardOnly the above package content, other products are not included.Note: Light 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.