NOISE SUPPRESSION SET 20 ferrite core noise suppression filter ring clips included, effectively reducing radio frequency interference to enhance the performance of your electronic devices. Compatible with USB, FireWire, phone lines, power lines, and audio/video cables, making it suitable for multiple applications. Easy installation design: Clips directly onto cables for a simple solution to clearer signals without complicated setups. Size options: five sizes available: 5mm, 5mm, 7mm, 9mm, 13mm to fit a range of cables and devices. Material and function: ferrite core noise suppression filter ring clips suppress RF interference at the source, helping maintain signal integrity. Performance benefits: reduces interference to improve overall performance of connected equipment. Use scenarios: In a home office, clip onto USB or FireWire cables near the computer to reduce interference and stabilize data transfer. In a home theater or audio setup, clip onto audio/video cables to minimize hum and ensure clearer sound and video. In a studio or workshop, clip onto power or data cables to help minimize noise during recording or data transfer.