While other headphones are plastic, these are metal! The slippers also have a hard bottom that is a rubbery material so you won?t slip. This gives you power, volume, track control, syncing, and turning the lights on and off. This is all fixed with the version 2, and now this radio is the complete package of nice operation and great performance. I play keyboard and I literally spent a couple hours playing and these sounds amazing. Cons: - can?t wear them for too long ; more than 2 hours as it?s compressing my ears, the case is not great looking. Very good quality, very nice material. I LOVE having the extra rack and hooks to keep helmets, gloves, waterbottles, roller blades or skateboards, too. Update (Sept 2020): Almost a year later and these sandals still rock! NO KISSES doggy mouths lol)