The Planet Waves Pacato hearing protection is a reusable, universal-sized audio filter designed specifically for musicians and music enthusiasts. While other hearing protection can sound muffled and unnatural, the Pacato filters provide full frequency and enjoyable audio at safe listening levels. The exclusive design offers an open air passage to the ear, minimizing occlusion (low frequency emphasis), while keeping the ear ventilated for unmatched comfort. 12dB average attenuation; includes carrying pouch.