The materials are of high quality: the padding in the ear is thick and soft, leatherette covering is velvety, the head headband is padded little but very comfortable. The slide adjustment is available even when wearing the helmet. My head is small and some headphones simply slide my head, as my old Sennheiser. Auna These headphones fit me perfectly. The isolation from ambient noise is great.
Also provided are two detachable cables, a smooth, the other type extensible spiral, thick and strong. The 3.5mm jack (gold plated) connects safely without sizzle. There is also an adapter with a screw and waterproof storage bag. I think the price is really justified! I'm not an expert, but in my opinion, these headphones are superb. I love!