Hi, we are the Amsterdam based start-up Knops. We offer you a way to adjust the volume of life itself. Wait, what? Sounds good right? Hear us out! Double pun, superintended. Knops created a hearing solution that is adaptable to every situation. From festival to construction work, from train to airplane, from concert to exam, from business life to city life. With this, you literally get a volume button in your ears. Our hearing solution, that works without any form of electronics, knows four different settings. Each setting filters out more decibels, until a maximum of 30 decibels. Total control over the sounds that surround you, all day every day.