The new powerful Bladefish 7000 Turno Personal Seajet ($995) is part of a new generation of underwater propulsion devices. It is more powerful, more compact and easier to use than ordinary sea jets. This 4-speed battery-powered device, propels divers underwater at 6.5 mph for up to two hours with a single charge. Weighing only 11lbs, the Bladefish 7000 Turbo is easy to carry along with your other diving gear. Here is a video of the Bladefish 7000 Turbo in action. How cool is it to actually cruise underwater without any efforts!