The Chamberlain Smart Garage Control is a convenient device that allows you to wirelessly control your garage door with ease. It is compatible with smartphones and can be used both indoors and by amateurs. The LED bulb is shaped in a square and the device runs on a lithium manganese dioxide battery. It supports one device at a time and comes with a hub and door sensor. The color of the device is white and it has an ergonomic design. The voltage required is 100240 volts and it is manufactured in India. The package includes one Chamberlain Smart Garage Control, and the item weighs 13.1 ounces.