Honeywell 1030111 Howard Leight Noise Blocking Stereo Earmuff Black

PLUG IN AND GO: There are no volume knobs or power switches to coordinate nor batteries to replace, Ease-of-use is enhanced by maintaining volume and power control through MP3 device, Users simply plug MP3 players and personal audio devices and listen VOLUME MANAGEMENT: Technology maintains sound levels from portable audio equipment at safe levels PROTECTION FROM HAZARDOUS NOISE:: With an SNR 31, the earmuff provides ideal, consistent hearing protection and ensures appropriate attenuation in most industrial environments, Sync's Volume Management Technology manages sound levels reaching the user's ear to a safe level EASY TO USE: Noise blocking is constant with no batteries required, while audio power and volume controlled via mobile device HIGH QUALITY SOUND: Excellent bass chamber enhancing bass sounds typically sacrificed in traditional protective stereo earmuffs COOL, MODERN STYLE: Sync's earcup design is DJ-inspired, and the sound quality is on par with other professional audio headphones, Sync's stylish design easily surpasses other industrial earmuffs, Both comfort and fit are ensured by its padded diamond-patterned headband and its reinforced forkslides that keep it inplace when worn SNR: 31 db EARMUFF CONSTRUCTION: Metallic DIELECTRIC: No BATTERIES NEEDED: None