No wiring required, plug the receiver unit into any standard outlet and mount wall switch at desired location or use as a remote control Selectable channels allow use of up to 4 units without interference Signal passes through walls and floors, Operational range up to 50 feet Rocker switch for easy fingertip control 11 width x 15.7 height x 8 length Switch uses one 12 volt type A23 alkaline battery, included Color=White