The 3M PELTOR ComTac VIII Headset helps protect your hearing and can help promote auditory situational awareness and communications in challenging environments. FeaturesEnvironmental listening for auditory situational awarenessHearing protection to help protect from impulse and steady state noiseAdvanced listening mode featuring Mission Audio Profiles (MAP) to help maximize audibility based on the acoustical environmentEarplug mode to help maintain auditory situational awareness when used in combination with passive earplugsSoundscaping to help with radio communication and speech intelligibility in noiseTested in accordance with applicable sections of a variety of military and other standardsCompatable to select helmets as a mounted device when the headset is converted with optional attachment accessory.