You’re looking for filter earplugs for use during festivals, concerts and going out. Which offer you good hearing protection but still allow you to enjoy the music. In terms of universal hearing protection, Alpine offers you the PartyPlug and the PartyPlug Pro Natural. What is the difference and which one is the best choice for you? The filters are the biggest difference. The PartyPlug Pro Natural has linear attenuation (dampening) filters and the PartyPlug has non-linear attenuation filters. We’ll explain exactly what this means.