Esung single Headband headphones Belt Fixed Mount anti-skid adjustable headband for GoPro Hero 3 camera 2 HD (Electronics)
Stable fixation. One regret is that the cross strap from the forehead to the neck should be removed to get to a less penalizing system (Petzl style for the front lamps. Indeed, the Petzl style lamps offer a simple strap that surround the head horizon
