RunLessWire Simple Wireless Light Switch Kit, No-Wires and Battery-Free Light Switches for Home (1 Receiver and 1 Light Switch) RW9-SKWH - The Home Depot
Milwaukee M18 18-Volt 4 Gal. Lithium-Ion Cordless Switch Tank Backpack Concrete Sprayer Kit with Battery and (2)Tank Assemblies 2820-21CS-49-16-28CS - The Home Depot