The Shotwave™ Earbud by Allen can Switch from 25 decibels NRR (Noise Reduction Rating) to 12 decibels NRR (Noise Reduction Rating) with the push of a button. The Shotwave™ Ear Buds are a compact system that is comfortable to wear for long periods, with or without, shooting muffs and have silicone canal inserts to fit a large range of ear sizes. Ear-fit bands provide fit stability while moving and includes a convenient Neoprene pouch for multi-surface tethering. No batteries needed and are great for shooting, car races, backyard work, commercial environments, concerts, operating power tools and many other activities the Shotwave™ earbud allows you to protect your hearing and listen to low-dB sounds in a small, comfortable silicone earbud system.