Review on Efficient Noise Filtering: 20 Pcs Snap on Ferrite Core Cord Ring for Various Cable Diameters, Black by Gene Rosado

After hearing a faint but annoying buzzing noise around my computer desk, I quickly searched the internet and the results showed that it was most likely coming from interference and cables. I have no idea what that means, but I've been advised to buy ferrite core noise cancellers. Since there were so many different sizes in this diverse set, I went a little crazy and instead of trying to figure out where exactly the sounds were coming from, I just clicked one of them on each cable on my desk. On a mouse, an outlet, my headset, a printer, literally every cord in sight. Guess the buzz's gone! (Another thing I noticed is that my Lenovo laptop's charging cable has one of these already built into the charging cable, as most laptop chargers do).