The US may never have used its microwave pain gun in combat, but that isn’t stopping China from exploring the concept of non-lethal force. Local manufacturer Poly has unveiled the WB-1, a millimeter-wave weapon that heats the water under your skin to deliver intense agony without injury. It currently works at a relatively short range of about 262 feet, but extra power can bump that up to 0.6 miles, if you know where to shoot, you could cause misery from afar.