RFI Noise Ferrite Core Filter This is a single clipon clamp filter that effectively eliminates electromagnetic and radio frequency interference while preserving signal integrity, resulting in clearer audio, video, and photo output. Compatibility across various sizes: available in 17 mm and 24 mm options, designed to fit a wide range of devices and cables for diverse applications. Snapon design for easy installation: the snapon magnetic ring allows hassle attachment and reduces wire entanglement. The wearresistant shell provides reliable performance even in temperature conditions. Use scenarios On a camera rig or with a connected microphone and recorder during shoots, attach the filter to relevant cables to minimize RF noise without compromising signal quality. In a home theater or studio setup, install on HDMI, USB, or audio cables to reduce interference and maintain clean, stable video and audio signals. In field recording or travel, quickly clip the filter onto cables in EMIrich environments, ensuring dependable performance and easy, tangle setup.