Logitech HARMONY Elite Setup Manual page 5

Congratulations on the purchase of Harmony Elite
The Harmony Hub is the center of your Harmony system—always keep it
powered on!
1.
The hub receives commands from the remote or mobile app The remote
itself does not send commands directly to your devices *
2.
The hub sends commands to your audio video and home control devices
in the form of Bluetooth, Wi-Fi, and infrared signals (IR)
*The remote can be configured to send IR signals directly to devices By default, it will
communicate to the hub using RF signals, as shown above
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