The following is based on the spin off novel by Keith R. A. DeCandido and some details might contradict canon.
Camera drones, often referred to as drones, are small floating cameras used by news reporters, especially W3N, to record images and sound for their reports. This eliminates the need for a reporter to have a camera operator.
The drone uses hover technology to stay aloft, while the reporter controlled the small device using an arm-mounted control. To see what is being recorded, the reporter uses a set of glasses that show a heads-up display of the drone's video. The glasses can also be tapped on the side to activate the machine.