The ideal hearing protection for evening disco courses or concerts! I have long been looking for a possible invisible hearing protection the disco or concerts and am hereby completely satisfied. They dampen the noise very well and let a even after several hours in the disco sleep at night without ringing ears. In addition: If you lose time (by dancing or alcohol-related clumsiness) one of the two plugs, the Neuanschaffungspreis is also quite bearable than in customized hearing protection solutions.