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 and provide both sonic and environmental protection. These noise-isolating caps help block unwanted interference. Simply place a cap over the open inputs on the back of your audio equipment. This can lower the noise floor and allow your system to perform at its best. Designed to reduce electromagnetic noise pickup from unused RCA connectors in audio and video equipment. Provides protection against dust and contaminants. Made with gold-plated brass for enhanced shielding. Offers protection against RFI, EMI, dust, and corrosion. Suitable for both shorting and non-shorting applications. Color: Gold Material: Gold-plated copper Package Contents: 10 x RCA Jack Socket Protect Cover Caps Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.