Hearos Xtreme Protection ear plugs are perfect for blocking out unwanted or damaging noise. Hearos Xtreme Protection ear plugs are perfect for sleeping, studying, attending concerts, traveling and participating and enjoying motor sports like Nascar.
Xtremely High NRR 33Noise Reduction Rating 33 Decibels (when used as directed). The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (higher numbers denote greater effectiveness. Tested according to ANSI Specs S3.19-1974 The level of noise entering a person's ear, when hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR.
Ear plugs must be inserted properly for optimum performance.
Practice of insertion is recommended. Please refer to the audio and video instructions at hearos.com. Discard product after several uses or as soon as dirt or wax accumulates on ear plugs.