8 Pairs Silicone Ear Plugs for Sleeping, Reusable Waterproof Moldable SNR = 27dB Noise Cancelling EarPlugs for Sleeping, Shooting, Airplanes, Concerts, Mowing, Studying, SwimmingBlue. 【Ultra noise cancellation】These ear plugs for sleeping have the capacity of 27 DB SNR and can cancel out most of the irritating and unnecessary noises in our routine lives.
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