If you go to a concert or festival you particularly want to enjoy the music. But you don't want to incur hearing damage or a permanent ringing in your ears. Especially for music lovers, there are now the Alpine Party Plug Pro Natural earplugs. These earplugs have special rectilinear Alpine Acoustic Filters. This means that the music is attenuated equally at all frequencies. , , The innovative PartyPlugPro Natural earplugs are made from AlpineThermoShape, a special soft, flexible and durable thermoplastic material developed by Alpine. When interacting with the heat of the human body, the ATS material becomes even softer and due to this, the earplugs fit as closely as possible to the ear canal.