Genie Master 3-Button Remote for Controlling Up To 3 Genie Garage Door Openers &ndash; Model GM3T-R COMPATIBLE WITH MOST GENIE OPENERS: Designed to work with most types of Genie garage door openers manufactured since 1993. WORKS WITH MULTIPLE TECHNOLOGIES: Compatible with Intellicode Technology, 9/12 dip switch, Genie Gated Community Receivers and fixed code trinary technology. OPEN MULTIPLE GARAGE DOORS: Works up to 3 different Genie systems, whether they are all the same or all 3 different openers. SIMPLE PROGRAMMING: Detailed, illustrated programming instructions included for quick installation. USER FRIENDLY DESIGN: Sleek design with large buttons, LED indicators, and visor clip.