After the fall of my Samsung on the floor rolling bike while he was in a seat cover, I was looking for a safe product, to see them live map of my route, move it if necessary to see paths, see my constant while being tight ... I ordered a Thursday night in mid August, he arrived direct from USA delivered Tuesday morning on my vacation spot. Installation is very simple, it adapts to the handlebars or the handlebars of my bike racing. I had a fear about the vibration but to use, no parasitic vibration whatever the adopted direction (height or width). In short, it fulfills its function 100%.