Unused HDMI® Sockets are shielded from high frequency irradiation and protected against corrosion and dirt with the nicely shaped XXL® HDMI caps. The result is a significantly better sound. The XXL® caps have a Teflon coating inside and consist of solid brass with 24 carat gold plating. eliminates high frequency irradiation TECHNICAL DATA Colour: Gold Housing material: Ultra thin single conductors Surface condition: Surface 24 carat gold plated Lieferumfang: 4x HDMI protective cap