Studies show that ear protection with integrated stereo sound can make workers more productive and motivated on the job. The Howard Leight by Honeywell Sync Stereo MP3 Earmuff lets the wearer enjoy crisp clear sound and strong hearing protection. Ideal for manufacturing environments this lightweight mp3 earmuff features patented Air Flow Control technology for optimal attenuation across all frequencies. Usable with any personal listening device you’ll enjoy comfort and ear safety thanks to a slim earcup design a padded headband with reinforced fork slides and a maximum volume output of 82 dB. Noise Reduction Rating: 25.