KZ Zax in Ear Monitor Headphones, HiFi IEM Stereo Noise Isolating Sport Wired Earbuds with Detachable Cable for Musician Audiophile

I had problems getting it to stay in my ears - maybe it was the wrong style for my ears.

You really can't beat the sound of these for the price. Or the build quality for that matter. These are literally the best earbuds I've used and if you care for Bluetooth then you can buy an adapter from the same brand to make them wireless. But you really can't go wrong with these. Noise isolation is okay, but the sound is really even. I mix a lot of music and these will be great as an additional place to listen to a mix after using my monitors/over ear headphones. Also super random but these are really loud earbuds, I barely have to raise the volume on my phone or computer. For $65 these are hilariously undervalued.

Fit get, sound great and the cord is just the right length.

Don't know what the material is but the wires are made to get instantly tangled and knotted. It's like they're made of saran wrap. Inexcusable to actually produce and sell such an infuriating terrible design!