Walk a little taller with the Sneakoscope, a portable alarm system that alerts you when untrustworthy folk are about. It whistles when danger is near.
Best for: Scardey-cats, children, urban dwellers
More on TIME: Photos: Visions Of Emma Watson
10 Technologies We Want to Steal from Harry Potter
From flying cars to portable alarm systems, here are our picks for the best pieces of wizard tech we wish we could take with us.
Sneakoscope
Full List
10 Technologies We Want to Steal from Harry Potter