Description: -Clip on ferrite bead cable can be used on all kinds of wire cords such as: Power Cord, Audio Cables, AV Cable, 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. Identifying and troubleshooting affected and devices are necessary for successful installation. TIPS: There is a tolerance of 0.8mm and it is recommended for use in cables smaller than the maximum diameter range.Specification:Model: 7mmColor: GreyFit Cord Diameter: 5.0mm-7.0mm (0.20"-0.28")Size: 16 x 30mm (0.63" x 1.18") (D*L)Application: AV Cable, Coaxial Cable, Audio Power Cable, Industrial Control Cable, etc. Package Content: 10 x RFI EMI Filters