I actually experienced a similar issue between the jack and the cable with exposed wires. It didn't affect audio quality for me, so it was just cosmetic; I wrap

I actually experienced a similar issue between the jack and the cable with exposed wires. It didn't affect audio quality for me, so it was just cosmetic; I wrapped electrical tape around the exposure as a fix. This shouldn't happen considering the price, but it wasn't a dealbreaker for my personal preferences (as the fix wasn't too noticeable, and I enjoy the noise isolation and sound quality).