SportEAR XP3 Sport Plugz (Black) 24 dB noise reduction rating Red button sound valve reduces sound even more Soft medical grade Polymer Low profile for ease of Use with Masks and other headwear Washable and reusable 25 dB Noise Reduction Rating (NRR) w/valve is closed. 19 dB Noise Reduction Rating (NRR) when open Multi-flanged for excellent fit and comfort Low profile design allows you to wear comfortably with helmet or hat