Honeywell 1030330 Sync Digital AM/FM Radio Earmuff combines passive hearing protection with clean, crisp digital AM/FM radio and connectivity to listen to music through a personal listening device reproduction. Digital AM/FM Tuning with LCD Display automatically searches for radio stations. 10 pre-set stations. Select your preferred volume once, no need to readjust it each time you turn the radio earmuff on. 2AA Batteries provides listening enjoyment for up to 111 hours (3 weeks based on 38 hours per working week). SNR 29dB is ideal for most of noisy environments.