Ferrite Core Noise Suppressor Rings for RFI Protection on Audio and Video Cables (5pcs) are compact ferrite cores designed to suppress frequency interference on signal cables. The rings reduce radio frequency interference (RFI) and electromagnetic interference (EMI) to help maintain cleaner audio and video performance. The 5piece set lets you protect multiple cables or devices within a single system, providing flexible, affordable protection across your equipment. Key benefits Reduces RFI and EMI on audio and video cables, helping to improve signal clarity and reduce noise, hum, buzz, and image disturbances. Passive, no power required, with no setup or maintenance needed. Includes five ferrite core rings, enabling suppression on several cables or devices at once. Durable ferrite material designed for long term use in home, office, or professional environments. Simple, noninvasive solution suitable for a wide range of standard cables. Key attributes Functionality: Ferrite core noise suppressor rings that attenuate frequency interference on signal lines. Compatibility: Suitable for use with typical audio and video cables to help protect signal integrity. Size: Ring form factor designed to slip around cables (exact dimensions not specified in the listing). Material: Ferrite core. Performance: Helps mitigate RFI/EMI to support cleaner audio and video transmission. Use cases and applications Home theater and entertainment systems: Slip rings onto HDMI, RCA, component, and other video/audio cables between sources (players, receivers, set boxes) and displays to reduce interference and improve picture and sound quality. Computer and workstation setups: Apply rings to monitor, speaker, USB audio interface, and other cabling to minimize interference that can affect audio capture, playback, or video clarity. Studio, broadcast, or field deployments: Use multiple rings on critical signal cables across devices to lower the risk of interference and maintain stable, higher quality signal transmission. This product maintains a professional, credible profile while clearly communicating its purpose, benefits, attributes, and practical applications. It provides a straightforward, reliable approach to reducing RFI and EMI on audio and video cables.