Review on 🎧 4MM Headphone Filter Mesh: Compatible with Samsung, Sony, Raycon, Skullcandy, Sennheiser, JBL, Audio Technica, Beats X, JVC, SIMGOT, Philips, Anker, 1More, Mifo, Klipsch, Jabra by Ryan Lawson

I don't know about E55 and up but I bought 4mm filters (the smallest recommended size) to replace my Raycon E25 headphones and they do not fit, despite what is written in the listing. They're just too big and don't hold up well. The gel tips on the earbuds seem to hold the filters in place fairly well, but they don't fit the earbuds as well as the previous ones. These filters are metal as opposed to the original fabric filters that the headphones came with which slightly degrades the sound quality making it a bit harsher. I don't think this drop in quality will be particularly noticeable to most people, but I was concerned about this when purchasing these filters so I'm a bit disappointed. This makes the headphones sound much cheaper. TL; DR: The smallest filters listed are too big for my Raycon E25 headphones, but unless you're concerned about fit or a slight drop in sound quality, they're pretty good replacements as Raycon doesn't sell their own replacement filters.