Genie Wired Keypad12 Button Wall Control24 Volt AC Operation From 110 Volt Transformer SuppliedWorks with Genie, Overhead Door, Liftmaster, Stanley, Craftsman, Sears, Linear, Wayne Dalton, Challenger, Wizard, Raynor, Chamberlain, Link and many others. Works well with older systems.Comes with easy to follow installation instructions