Bought them in a size up because people were saying theyre too small. Lo tienen todo. They are noise canceling even when the volume is low or medium. Ordered these for my daughter who wanted jelly sandals. ) Have you seen the documentaries of hotel room remotes? If this was larger, I would take it with me while traveling. Otherwise sturdy slip on. Just received so no rating on battery life. Closing the magnetic lid on the charger there is a snap that indicates it has magnetically and securely closed. Valentin is a revolutionary. These honestly seem comparable to me in quality and sound, but actually affordable.