Lutron RR-AUX-REP-WH RadioRA 2 Repeater White RadioRA 2 Repeaters extend the range of Radio Frequency (RF) signals that are sent between dimmers, switches, keypads, visor controls, shades / draperies, and other devices Mount Receiver on a wall, ceiling, or level surface using the two #6 (M3) screws provided Repeaters communicate with the system through RF All devices (except remote dimmers / switches) must be located within 30 ft. (9 m) of a Repeater All repeaters must be within 60 ft. (18 m) of another repeater