The Magic of the Harmony Hub The Hub is the "brain" of your operation. Unlike traditional remotes that require a direct line of sight to your devices, the Harmony Hub uses Bluetooth, Wi-Fi, and Infrared (IR) to communicate. Hide Your Gear: Because the Hub sends the signals, you can keep your cable box, gaming consoles, and receivers tucked away inside closed cabinets. No more messy wires or bulky boxes cluttering your TV stand. Smartphone Integration: Download the Harmony App, and your phone becomes a fully functional backup remote. Whether you’re in the kitchen or on the patio, you have total control over the house. Infinite Compatibility: The Harmony database is legendary, supporting over 270,000 devices. From your vintage Sony receiver to the newest Roku Ultra, if it has a remote, the Hub can likely talk to it.