All parts of this product are original authentic, unpretentious, pure quality; the use of 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 guarantee. The pursuit of first-class quality is our consistent aim. Electrolytic capacitor signal The main circuit using brand name, the main filter capacitor using ELNA dedicated electrolytic capacitor capacity 330UF, to ensure a strong stream of power support. PCB 1.6mm thick double-sided plate, 2.0 oz copper thickness, spray the whole process of tin, to ensure 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 switch PCB size: 81 * 59MM colour:red Material:Metal +pc Package Contents: 1 * Audio Decoder Board Only 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.