The switch fits with my BMW 1150 GS ADV perfectly in the center of the handlebar, and serves to ensure that I can turn off the USB socket of the mobile phone / Navi when not in use so that current no longer flows. The switch acts already cheap, but for under 3 nothing was to be expected otherwise. But the fact is that it works and carries out its mission. As for longevity, I can not say anything yet. But as soon as he should get broken, I'll announce it here. So far, I'm really happy with it and would also obstruct him.