Question about Comply Hearing protection

The SNR value is a European standard. In the United States, the NRR (Noise Reduction Rating) is used, which is defined by the American National Standards Institute (ANSI). Since this is an American product, no SNR value is given, but the American equivalent NRR: 15 decibels.

You can find more information on the manufacturer's website: http://www.complyfoam.com/products...