Authorized hearing protector for use by soldiers and department of the army civilians. Dual mode protection. Open cap to hear commands while maintaining impulse noise protection. Closed cap for continuous/steady noise. The louder the blast the more noise reduction (in open position). Cap is easy to open and close, in-ear. Easy to see when cap is in open or closed mode. Easy to clean. Includes: 1 pair of earplugs, 1 Pocket-Pak®, 1 chain, 1 cord, all loose in poly bag with instructional insert.