This is Guardbot, a surveillance robot that's able to manoeuvre on any terrain, even having the ability to swim. The device comes in a variety of sizes, ranging from as small as 5 inches to a model that is 7ft in diameter.  Guardbot is fitted with two surveillance cameras, a batter that can last for 25 hours, microphones and GPS, allowing it to be controlled via satellites as well as remotely.  It's currently still in development and the military are looking into using it for future deployments. Could Guardbot be the future of mobile surveillance?