VeriShield Earmuffs are noise reducing headphones designed to fit comfortably on the head and around the ears while offering effective hearing protection and noise-canceling. The memory foam ear cushions and lightweight cushioned headband are designed to provide comfort for long periods of time. Each model has a different level of protection called a Noise Reduction Rating, or NRR for short. Please make sure you are choosing the appropriate level of noise reduction for you or your child.