Logitech Harmony Hub Guide D'installation page 4

Logitech Harmony Hub
Congratulations on the purchase of Harmony Hub
The Harmony Hub is the center of your Harmony system—always keep it powered on!
1.
The hub receives commands from the mobile app
2.
The hub sends commands to your audio video and home control devices in the form
of Bluetooth, Wi-Fi, and infrared signals (IR)
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