Used Genuine Lifmaster Garage Door Keypad Remote 877LM. From a working installation.
Note that all the models listed that say "for Liftmaster" are not the factory original part. This is a real one.
Numbers off label: IC:2666A / KP7382.
Shipped less battery. Uses a standard 9V. No other accessories included.
Scuffs Oxidation and wear. No apparent damage noted. No corrosion on battery contacts.