WAC Lighting LED-TO24-WS InvisiLED Palette Outdoor Controller Wireless Controls all of the features and functions of rgb master controller wirelessly Operating range: 75ft max (if there are no obstructions between the wireless controller and master controller) Compatible with WAC Lighting led-tc-ctr-msd master controller for invisiled 24V rgb color changing tape light Requires 2 AAA batteries To be used with WAC Lighting invisiled 24V rgb color changing task & cove tape light. Standards: UL & CUL listed for Damp locations Wireless connection to Master Controller. 4" x 2 1/2" x 5/8" Optional Item - Master Controller required to function