Logitech Harmony is a line of remote controls and home automation products formerly produced by Logitech. The line includes universal remote products designed for controlling the components of home theater systems and other devices that can be controlled via infrared, as well as newer smart home hub products that can be used to additionally control supported Internet of things (IoT) and Smart home products, and allow the use of mobile apps to control devices. Logitech stopped manufacturing Harmony remotes in 2021 and discontinued support for older models in 2025.