What irritates! First hold on the head, you can not use in mobility. If you are standing and tilt head, the helmet falls! I do not tell you what it can be in the Parisian subway!
All functions are grouped on the ore perfect right atrium, but the marks to increase or decrease the sound, are not prominent enough and drawing anything. This requires pasting small round and triangle to have the well under the fingers!
But the most annoying, and this helmet does not tien on the head. A book listening to the house, and do not lower your head ...
