I bought these as a short term replacement for my other headset that broke due to my day head.MATERIAL QUALITY: I mainly purchased these for the metal bands that attach the cups to the main band and these hold up. the plastic material of the headphones themselves will pick up fingerprints like crazySOUND QUALITY: I'm not going to say I have the most tuned ears but these sound less than average the mid-range doesn't sound sharp, and the highs are non existant u less you crank the volume then you just hear hissing, and like all cheap Bluetooth headphones the bass is there and muddy.BLUETOOTH QUALITY: when it comes to signal strength these are strait up garbage going from one room of the house to another causes all audio sources to skip and cut out that's incredibly disappointing for something with such a decent build quality.NOISE CANCELATION : I took these to the gym with me on a whim and turned on the noise cancelation and these performed better than I expected. It was effect enough to tune out the music being blasted in the gym so I give these props for that.BATTERY LIFE: My main use case for these where for my long coding/gaming's sessions at my desk and these will last a full day and a half but that's about it. It's not great but it's not poor either.INTERFACE : Jesus christ the buttons on this thing are terrible! There gesture controlled and will activate at random times. Even just tilting your head will cause songs, videos, and other audio sources to pause, skip tracks, and even other browser tabs to just start playing audio! and that's just damn near infuriating.CONCLUSION: Again I bought these as a stop gap while waiting for a warranty on another pair of headphones. I couldn't honestly in good faith couldn't recommend these to anyone.