A docking station (20) and a robot (22) for docking therein, include corresponding transmission parts. These transmission parts are for the transmission of energy, such as electricity, for recharging the robot (22), and/or signals, for operating the robot (22), the energy and/or signals passing between the docking station and the robot (22). The docking station (20) and robot (22) are such that the docking of the robot (22) in the docking station (20) is at a horizontal orientation, as the transmission part on the robot (22) includes laterally protruding docking contacts that contact corresponding laterally oriented contact arms of the docking station (20).