How to buy a bluetooth headphone
It made me 
"My ears are not ergonomically formed. Therefore all headsets fall off"
How I did it: Went into the shop - looked for the cheapest and expensiest bluetooth headset. Decided to pick one in the middle. When I came home the headset did not really fit my ear.
Lessons & tips: forget about plain-of-the-shelf products. They will probably NOT work for you. I will soon buy a headset from Beyer Dynamics. They offer ortoplastics which they customize for your ears.
