Canon EOS 90D DSLR Camera with 18-135mm Lens - Manual (Page 471)

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Bluetooth Settings
1 Select [ k : Bluetooth settings].
2 Select an item.
 Bluetooth
If you will not use the Bluetooth function, select [Disable] .
 Check connection information
You can check the name and communication status of the paired device.
 Bluetooth address
You can check the camera’s Bluetooth address.
 Stay conn. if off
Displayed after the camera is paired with a smartphone via Bluetooth.
Selecting [Enable] lets you view images on the camera and control it in
other ways by connecting via Wi-Fi even if the camera is off ( = 405).