Logitech Harmony is a home automation platform created by Logitech. The platform consists of universal remote controls, an iOS + Android app and a hub. Devices that can be controlled with Harmony include TV's, cable boxes, game consoles, smart lights, smart thermostats, smart locks and other connected devices with Wi-Fi. The remote control sends a sequence of commands to the system components to configure them for the activity that the user selects through infrared (IR) or radio frequency.
The technology used in these remote controls is also used in the Logitech Revue Google TV boxes, allowing the Revue to provide control over the entire home entertainment system. According to Logitech, "[A] free app plus your new companion box will give you the same control over your home entertainment system as our most powerful Logitech Harmony remote".