Walker's Cloak Dual Mic Electronic Ear Muffs 23-25dB Black SPECIFICATIONS BRAND: WALKER'S DESCRIPTION Thanks to Sound Activated Compression (SAC) and a noise reduction rating (NRR) of 23-25 dB, our Cloak Dual Mic Electronic Muffs ensure your hearing is always protected. The addition of built-in, high-definition speakers and dual Hi-Gain omnidirectional microphones deliver clear, balanced sounds at safe levels. Simply slide the padded headband into place and go about your business. Easy to fold up and store away in any range bag. Silent, simple-to-operate soft-touch button controls ensure zero distractions. Powered by two AAA batteries (included).