MSA Sordin Supreme Pro X with green cups - Neckband - Electronic Earmuff equipped with comfortable ear-seals, slim-design slim design especially for using under military-helmets Compresses harmful noise to 82dB. Amplifies safe noise x 4 times AUX input and AUX-cable for connection to external radios, mp3, phone etc. equipped with the "MSA Sordin Supreme Gel Comfort Earseals"