stardrift 10-Pack 5mm Diameter Snap on Ferrite Core Bead Choke Ring Cord RFI EMI Noise Suppressor Filter for USB Cable Audio Cable Video Cable Power Cord Black
<b>Application Occasions of This Great Noise Attenuator<b><br> 1.Great for blocking RF-interfere<br> 2.If you have computer interference around your computer, get a set and use them,they work.<br> 3.If you are a ham radio operator and the antenna is in your attic.Put them on USB cables, power cables<br> 4.Fixed LED lighting interference from some over-the-air television channels<br> 5.More occasions you can consider</b></b>