Cover all the unused RCA inputs in your system with these RCA caps to prevent noise from entering your components. The caps slide over unused RCA jacks, providing both sonic and environmental protection. These noise-reducing caps help block unwanted interference. Simply place a cap over the open inputs on the back of your audio equipment. This can help lower the noise floor and allow your equipment to perform at its best. Designed to prevent electromagnetic noise pickup from unused RCA connectors in audio and video equipment. Provides protection against dust and corrosion. Constructed with gold-plated brass for reliable shielding. Offers protection against RFI, EMI, dust, and corrosion. Suitable for both shorting and non-shorting applications. Color: Gold Material: Copper Package Contents: 8 x RCA Plug Cap Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.