Propel yourself at speeds of up 12mph with the awesome Acton RocketSkates R10, which boast a range of 10 miles with a Li-ion battery that's good for an hour and a half. Simply step in and strap on--they'll fit most kinds of footwear, though we'd advise against heels, if you're in to that sort of thing--and the 55W motor will move any body mass up to 250 pounds.