MSA Sordin Supreme Pro - Electronic Earmuff for Hunting & Shooting, Black Edition equipped with the Standard foam-seals Black Edition - with black leather-band and black cups Compresses harmful noise to 82dB. Amplifies safe noise x 4 times AUX input and AUX-cable for connection to external radios, mp3, phone etc. MSA Sordin hearing protectors reproduce a natural and realistic sound