I bought the headset today. Home when trying on clothes, I realized that it was too big for me! It depends so that it is uncomfortable in the ear, would have to be so actually higher ... Annoyed, I tried to make it smaller, only to find that it was already set to the lowest level ... Which reminds me ripped the rubbery reference above headboard on one side from -.-. Later, I tried the product yet and the sound quality is fine. Nevertheless, I will bring the headset, because me 20 euros for a product that at which it was bought on the same day broke, are definitely too much.
Conclusion: For people with a relatively narrow head circumference is inadvisable from a purchasing this Haedsets. For everyone else, I see no problem.