Headset only moves between where I store them and my head! I love it, my hubby even uses it too. The one major complaint is that I would not have been able to assemble this myself. Jai lu que dautres clients se plaignent de leur étroitesse :au début , je confirme cette impression mais quelques heures plus tard ils sont "faits" à mon pied et lenserrent parfaitement . It is very poorly made. Done! It doesnt slip, slide, turn, or fall out when you go running. They are fitting me more like a size 10. I have been eating meat marinated in this sauce every week (sometimes multiple times a week) for at least four years. ) si sentirà tutto impastato.