The Decora Smart Anywhere Dimmer Companion pairs wirelessly with your Decora Smart Wi-Fi 2nd Generation Dimmer (D26HD) or Mini Plug-In Dimmer (D23LP) to provide additional lighting control wherever you need it most such as at the base of a staircase, the end of a hallway or open areas with multiple entrances like a large kitchen or family room. Mount it directly on the wall surface or at an existing single or multi-gang wallbox no wiring is required.The Decora Smart Anywhere Dimmer Companion is the perfect solution for locations where wiring or a wallbox with a traveler wire may not be present. For added convenience, you can even control the Decora Smart Wi-Fi 2nd Gen Mini Plug-In Dimmer to add a wall mounted dimmer for your connected plug-in lamps.