An apparatus is disclosed that includes a battery-powered switch and a switch dock. The switch includes a microcontroller, a short range wireless transmitter, one or more tactile control buttons, and one or more magnetic prongs. The magnetic prongs are contained within prong slots in a switch body. The prongs are coupled at one end to at least one spring coupled to the switch body, and the spring exerts a retracting force on the prongs when the prongs extend outwards from the switch body. The dock includes one or more metallic holes, where the number of holes matches the number of prongs. The prongs extend from the switch body and fit in the holes when brought near enough to the holes that the holes exert a magnetic force on the prongs that is stronger than the retracting force exerted on the prongs by the spring.