Canon EOS 70D(W) Instruction Manual page 21

Note that GPS information is not displayed on the camera's playback screen
even if GPS information is appended to the received image. Shooting
locations can be viewed on a virtual map, using the Map Utility software.
The connection settings are automatically saved/registered with the
nickname of the camera to which a connection was established.
Auto power off does not function when the camera is connected to
another camera.
Selecting the Connection Destination
4
Select the images to send.
Select images on the camera sending
the images (p.22).
Do not operate the camera receiving
the images.
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