The range of a WiFi drone is determined by several factors, including the power output and antenna configuration of the transmitter on board the drone, as well as local environmental conditions such as terrain and presence of obstacles. Generally speaking, most modern drones can travel up to several kilometres away from their operator before losing connection with the controller. However, this range can be affected by interference or obstructions in its path; for example, if there are walls or tall buildings blocking line-of-sight between the drone and its pilot then it will be unable to maintain a strong wireless signal and thus have reduced flight time. Additionally, some drones may come equipped with specialised antennas that allow them to extend their reach even further than usual.