No, it's actually a device that locks the Zumo to the charging cradle, which then stops the release button on the Zumo being depressed. Not only is that a good thing, but it also stops any potential idiot, trying to grab it when you're stoped at anytime, say at some traffic lights.When it comes, I will post some pictures of it fitted to the bike. I've seen locks on eBay that do the same for £35 from China, this unit comes from Holland, and looks like a tidy bit of kit. You can only try can't you.