ITEM NAME:20xClip-on Ferrite Ring Cable Clip Core RFI EMI Noise Suppressor Filte XSW IPO Descriptio n Description: Initial permeability: 350 Coercive force: 20 (A / m) Remaining: 200 (mT) Curie temperature: 110 (Â °C) Density: 4.6 (g / cm3) Applicable to: 3.0-5.0 wire diameter Product Description: 1. The magnetic ring can play a good anti-jamming effect, preventing the display from shielding, snowflake and surrounding clutter signals from invading the device, etc. Filter anti-interference, improve audio and video quality, improve purity audio system, anti-wear external quilt, high temperature resistance, corrosion improve signal quality 3. Further enhance audio and video quality, enhance audio system purity, and reduce signal line interference through power line noise The scope should be: 1. Electronic equipment, medical equipment, electrical equipment, audio equipment, mechanical equipment, communication equipment, etc. 2. Power cable, data cable, signal cable, USB cable, etc. Specifications: Material: Nickel Zinc Plastic Colour: Black Dimensions: Outer Diameter 13mm, Inner Diameter 5mm, Height 25mm Package Included: 20 * Snap Ring Note: Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! 20PCS Clip-on Ferrite Ring Cable Clips Core RFI EMI Noise Suppressor Filter Bead.The magnetic ring can play a good anti-jamming effect, preventing the display from shielding, snowflake and surrounding clutter signals from invading the device, etc. Filter anti-interference, improve audio and video quality, improve purity audio system, anti-wear external quilt, high temperature resistance, corrosion improve signal quality 3.