Synctm Digital Earmuff with AM/FM Tuning with LCD Display: automatically searches for radio stations. Clean, crisp digital radio reception and high-fidelity stereo sound quality will keep workers in tune throughout their workday. 10 Pre-Set Stations: Easy to use and to switch from one station to another one. 82 dBA Maximum Volume Output(based on input of 120 mV): Listening level safer, even when they listen to their own MP3 player. Volume Memory: Select your preferred volume once, no need to readjust it each time you turn the radio earmuff on. Cool Headband / Earcup Design: Sleek diamond pattern headband with red stitching looks cool, easy to clean. Reinforced fork slides with handholds for easy and comfortable fit. Textile avoids heat transmission common with plastic headbands. Outer Slip-Lid Battery Compartment: No tools required / easy to use. 2AA Batteries: Provides listening enjoyment for up to 111 hours (3 weeks based on 38 hours per working week). SNR 29 H 29 / M 27 / L 22: Ideal for most of noisy environments. Blister Pack: Clear display shows product. Can be hanged on rack or placed on shelf for in-store merchandising.