A hand held controller for a games console comprising an outer case, a plurality of controls located on a front end and/or top of the controller, at least one additional control located on a back of the controller, a control unit for controlling a mode of operation of the controller and at least one magnetic sensor in communication with the control unit. The control unit is configured to receive a signal from the at least one magnetic sensor in dependence upon a magnetic field being detected by the at least one magnetic sensor and the control unit is configured to determine a mode of operation of the controller in dependence upon the signal received from the at least one magnetic sensor.