The Lutron AUX-REP-WW is a wireless repeater that extends the range of Lutron wireless devices. It can be used to create a mesh network of up to four repeaters and one main repeater, covering an area of up to 30,000 square feet. The AUX-REP-WW is compatible with Lutron Caséta Wireless, RA2 Select, and RadioRA 2 systems. It is easy to install and configure using the Lutron app or software. The AUX-REP-WW has a sleek design that blends in with any décor and can be mounted on a wall or placed on a flat surface.