Designed to integrate onto the Razor earmuff, this new attachment provides Walkie Talkie functionality by adding 22 Channels/ 99 Sub Channels with a 2-3 mile range. This set contains a Custom designed to integrate onto the Walkers Razor muffs, 22 channels, 2-3 mile range, Push to talk / Voice activated, Powered by 2 (Aaa) batteries included, and 12 hours of battery life.