Features: Ensures stable signal transmission, reduces oxidation and interferences, and improves auditory. Cover all the unused XLR inputs in your system with the XLR caps and keep this noise from getting into your components. Our XLR caps slide right over unused XLR and will provide environmental protections. This Noise-Stopper caps grounding plugs that help you block out this unwanted noise. You will aware Noise-Stopper caps lower the noise floor and allow your equipment to perform to it's fullest potential. Specifications: Component：Metal Features: Good insulator for lowest distributed capacitance Size：about 20x22x16mm/0.79x0.87x0.63in Quantity: 2PCS Package Includes: 2PCS Dust Caps note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution