See also:

Supported formats
Depending on the compression method used, not all files of the specified formats can be opened. Images ▷ JPEG/JPG. With very large image files, it can take longer for the images to be d ...

Saving the spoken instructions on the programmable memory buttons
The function for switching the spoken instructions on/off can be stored on a programmable memory button, for quick access. ...

Activation/deactivation
Press the button. ...