Brand new in retail packaging. Will work with & replaces these models: Logitech Harmony 720, 720 Pro, 880, 880 Pro, 885, 890, 890 Pro, 900, 900 Pro, Harmony One, K43D, M36B, M41B, MX-880, MX-890, R-IG7, 190304-0000, 19304-2000, F12440023