Autonomous drone impresses at world show A Chinese firm has wowed the annual Consumer Electronics Show in Las Vegas with its Hover Camera drone. The paperback-sized gadget flips open to follow the user around using facial recognition technology Take control: Phone App lets user fly drone Three flight modes: “Classic”, “Joystick” and “Motion” Video: See everything in real time Battery: Allows 10min hover (no wind) Propellers (x4) USB 3.0 port Power button LED light Face and body tracking: Recognises user and follows them around Size folded: 182x132x33mm Weight: 242g (with battery) Speed: 28km/h (17mph) Ceiling: 2,000m (6,500ft) Control range: 20m (65ft) Ease of use: Advanced artificial intelligence lets drone be flown immediately Grab and go: Enclosed carbon fibre cage lets user grab hold of it mid-air Cost: $599 Available: Now Sources: Zero Zero Robotics, CES, wire agencies Pictures: Zero Zero Robotics