I find apples treble reducer EQ works well, the bass booster mode further enhances the bass too much. Muddy audio with average clarity and detail. The largest tip is still smaller than the largest silicone tip making them a bit fidgety to insert. Sometimes when you buy an item made in China or Japan the documentation can be less than good. I needed a little bag to put my wallet, my keys, masks (2020 has been crazy) and Vicky Secrets body spray & lotion in for when I run quick errands. It also has a very similar feel to the expensive Apple charger. The instructions are very clear. So if you have even a slightly wide foot, get the wide fit. Works great, much more adjustable than any other I’ve looked at. Bass is hits, it excels at explosions and gunfights in video games, music is meh (if you know settings and stuff it can be good) but I like it, audio is crisp and those footsteps tho.