Comprehensive noise filtering set: includes 20 ferrite core noise suppression filter ring clips designed to reduce radio frequency interference and improve electronic device performance. Broad compatibility: suitable for USB, FireWire, phone lines, power lines, and audio/video connections for versatile use. Clipon installation: easy attachment to cables without tools, enabling clearer signal transmission. Five sizes available: 5mm, 5mm, 7mm, 9mm, 13mm to fit a range of cables and noise challenges. Use scenarios In a home office, clip around USB cables near wireless devices to reduce interference and improve data reliability. In a home theater setup, clamp around HDMI and audio/video cables to minimize noise and improve signal quality. In a workshop or office environment, apply to power and data cables to suppress EMI during speed data transfers.