Check the listing for details. ☀️Hellberg Silencio Universal Hard Hat Ear Muffs, Hearing Protection 22 Db Nrr. Condition: New. Listed at 15.77 USD. Loc. WH2 Brand New exactly as pictured. Purchase is for 1 pair. Multiple units available. We ship out same day if paid by 2pm central. Sells and ships from Houston TX. •Protection level 1 for low to medium noise •Very slim and light weight •Approved with most popular safety helmets The helmet mounted earmuff is the ideal choice for any work that requires head and hearing protection. Its durable construction withstands rough environments and the slim design reduces the risk of snagging in branches or confined areas. Protection level 1 is suitable for low to medium noise levels, between 75-90 dB. A perfect choice for noise protection in many different work environments such as general manufacturing industries, working with electric power tools and for short term noise exposures. ☀️Hellberg Silencio Hard Hat Mounted Ear Muffs Quicksnap Hearing Protection 22nrr.