Wow, I did not believe the bad reviews and I've ordered these things anyway. After receiving tried directly times - you simply listen to everything. The volume is reduced a little, a bit like when you have a finger on the ear hangs himself (not reinsteckt). OK, I thought at first I used the plugs may not deep enough, so again, as described in the manual, with opening of the ear canal by pulling the ear. Result: the attenuation is no better. However, the parts are so short that I did then find out garnichtmehr with your hand. After several frustrated minutes with tweezers in the bathroom mirror, they are then moved right out of my ear in the trash. Bye 12 euros, many thanks also Alpine. The foam earplugs, you get nachgeschmissen everywhere, are a thousand times better.