The KLIK5U-BK2 is a universal garage door opener remote with two buttons for independent control of two different garage door opener brands. It works with over 90% of garage door openers across North America, including Chamberlain, LiftMaster, Craftsman, and Genie models. The remote features a 800-foot operating range and universal wireless programming for straightforward installation without garage wiring or a receiver. It also controls compatible gate operators and MyQ Light Accessories. Dimensions: 0.72 in. (D) x 3.20 in. (H) x 2.04 in. (W). The unit has been tested for reliable performance and extended battery life.