Description: -Clip on ferrite bead cable can be used on all kinds of wire cords such as: Power Cord, Audio Cables, Data Cable, USB Cables. -It helps improving the electromagnetic field and signal quality around the cable, avoiding outside interference. -It won't cause distortion of the transmitted signal and won't affect your audio, video and picture quality. Note: Please install them in place near the interference source. (Near the import and export of shielding case as much as possible.) If a cable has equipment that needs to be protected on both sides, install one at each end. Specification: Model: F15mm Color: Black Fit Cord Diameter: 13.0mm-14.0mm (0.51"-0.55") Size: 29 x 15mm (1.14" x 0.59") (D*L) Package Content: 5 x RFI EMI Filters

?Better Shielding?If the wire is too thin too loose or you want get better anti-interference effect, you could wrap it around more. ?Wide Application?Mainly used for electronic connecting wire, air conditioner, PC, AC power lines, video and audio cable, telephone line, and other home appliances etc. ?Detachable and Reusable?Clip on wire and removable easily. It won't cause any distortion during signal transmission. ?Reduce Single Interference?The ferrite core effectively helps in reducing electromagnetic interference(EMI) and RF interference(RFI), and get clearer signal and audio quality. ?Specification?Size: 15mm (Suitable for 13.0-15.0mm cables); Package Includes: 5 x Ferrite Core Ring.