The Radians Inc. 430EHP includes two versions: the 430-EHP Black and the 430-EHP4U Camo. These are electronic sound amplification earmuffs designed to enhance low-level noises, thanks to an independent microphone incorporated into each one. With a compact folding design, these earmuffs can be easily stored. They boast an intelligent electronic circuit that activates automatic protection when sound levels go beyond 85dB, ensuring a Noise Reduction Rating (NRR) of 27. This means that while they amplify sound, they simultaneously protect your hearing.Other noteworthy features include an easy-to-use on/off volume control, a comfortably padded headband and an impressive battery life that spans approximately 200 hours.