$4.29

For the perfect night's sleep. Helps block snoring & noise. Reduces noise by 32 decibels. Super soft & always comfortable. Physician recommended. Plus free case. Noise Reduction Rating: 32 Decibels When used as directed. The range of noise reduction rating for existing hearing protectors is approximately 0 to 30. Higher numbers denote greater effectiveness. 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. Made in the USA.