Sleep better naturally! Protects hearing by reducing harmful noise. Excellent for: Sleeping, power tools, lawn mowing, car racing, concerts, rifle range, studying. Noise reduction rating 29 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). Prevent future hearing problems by using proper hearing protection today. Noise Reduction Rating: 29 Decibels (When used as directed). The level of noise entering a person' s ear when hearing when hearing protector is worn as directed is closely approximated by the difference between the A-weighted environmental noise level and the NRR. Example: (1) The environmental noise level as measured at the ear is 92 dBA. (2) The NRR is 29. (3) The level of noise entering the ear is 63 dBA. Made in U.S.A.

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