Abstract: A hand-worn controller consisting of a housing having a central opening sized to permit the controller to be worn as ring on the index finger of a human hand. A joystick lever projects outwardly from said housing and is positioned to be manipulated by the user's thumb. The joystick operates on or more control devices, such as switches or potentiometers, that produce control signals. A wireless communications device, such as a Bluetooth module, mounted in said housing transmits command signals to a remote utilization device which are indicative of the motion or position of said joystick lever.