3M Peltor Optime 95 Over-the-Head Folding Earmuffs, Hearing Conservation H6F/V (Pack of 1) Small, compact earmuffs recommended for TWA noise exposures up to 95 dBA Ultra-light hearing protectors are comfortable and convenient Folding design offers compact storage Noise Reduction Rating (NRR) 21 decibels Earcups with liquid and foam filled cushions offer comfort for long wear and optimum seal