EM-OSP-82DB : Active Electronic Noise Cancelling Ear Muffs 82 Decibels Shooting, Industrial Etc. 6 x 4.5 x 4.2 inches; 1.1 Pounds. 4 AAA batteries required. Extremely low profile earmuffs that amplify low-level sounds. Comes with a compact carry case and have an external battery compartment for easily replacing batteries. Amplifies low level sound while reducing harmful or impulse noise above 82 Decibels. (2) AAA Batteries Included. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.