At first glance one might think, wrongly, that it is nothing less than conventional earplugs as we know for a long time. But the Alpine earplugs are more than that. Contrary to the above product, these plugs let through all frequencies and attenuate the volume, so this is the perfect product for all amateur concert anxious to preserve his ears.
Generation "walkman" forces, mine were put to the test, what a pleasure to finally attend properly to a concert without missing a beat or hear buzzing over the following days!