Yarachel 50PCS RFI EMI Noise Suppressor Cable Clip for 3.5mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter Cable

There are what they are and do what they claim. some fight to lock and some magnet was broken off in the box but all worked.

Muy buen kit de filtros de ferrita. Gran variedad de diámetros y suficientes unidades de cada medida. Si los recomiendo.

I use these ferrite core clips to help reduce any noise or interference to my Ham radio from nearby electrical lines and such. They have definitely have helped. They are easy to use and inexpensive.

As a newly licensed ham, I knew that these things were SUPPOSED to reduce RFI on cables. Well, I heard a godawful noise over my computer speakers when I keyed up on my 5W 2m HT. I was not sure if the ferite mix would be correct for my needs, but took a chance. I put a one of these on each end of the speaker wires with just one loop of cable through the ferrite bead. SILENCE! I was so happy. I didn't know what size I really needed, and this set has five different sizes. I'll probably have to give the rest to my neighbors when I crank up my Yaesu FT-2980 to 80 Watts!

Used on various cables to cut out radio interference