DUBS ACOUSTIC FILTERS | Developed by acoustic engineers and designers, the DUBS Acoustic Filters are advanced tech ear plugs that reduce volume without sacrificing the clarity of sound. They are ideal for people exposed to high volume levels such as in clubs, concerts, or even construction sites and airports. The snazzy earplugs employ a 17-piece Dynamic Attenuation filter, providing a 12 decibel Noise Reduction Rating to help protect your ears