Compatible with Westinghouse TV models: WD40FB2530, WE50UB4417, WE55UB4417, WE55UDT108 No programming or paring is needed. It is ready to use after inserting batteries. Package Content: 1X Remote Control ( batteries NOT included) Remote Control fit for Westinghouse LED Smart UHD 4K TVs No programming or paring needed. Please install new batteries to get it work. Compatible with below Westinghouse TV models: WD40FB2530, WE50UB4417, WE55UB4417, WE55UDT108 Power Supply: 2X 1.5V AAA Alkaline Battery Package Content: 1X Remote Control ( batteries NOT included)