Multi-room switches typically connect as companion controls to a compatible primary switch, lighting system, receiver, or processor, using wireless radio frequency or wired connections based on the system design. In distributed audio installations, in-wall keypads can connect to supported processors and receivers, while lighting controls pair with their corresponding system devices for multi-location operation.

For lighting applications, companion switches connect to a 120V circuit and a compatible primary or master control; neutral requirements vary, so verify the wiring for the selected switch before installation. Multi-room audio keypads fit a single-gang electrical box for flush-mount installation in a wall or cabinet, with system wiring and power handled according to the connected audio control system.

Wired multi-room switches use physical conductors to connect companion controls to a primary switch, making them suitable for multi-location installations where wiring is accessible. Wireless multi-room switches communicate through radio frequency and must be paired with a compatible primary control or system, which can simplify control expansion when running new wiring is difficult.

Multi-room switches let installers add companion switches to a compatible primary switch, extending lighting control across multiple locations and rooms without adding another primary control. For distributed audio, an in-wall keypad with programmable buttons can provide source, power, and volume control from additional rooms when paired with a supported multi-zone receiver or processor.