You can use a Bluetooth braille display to read VoiceOver output, and you can use a braille display with input keys and other controls to control iPhone when VoiceOver is turned on. For a list of supported braille displays, go to www.apple.com/accessibility/ios/braille-display.html.
Connect a braille display. Turn on the display, then go to Settings > General > Bluetooth and turn on Bluetooth. Then go to Settings > General > Accessibility > VoiceOver > Braille and choose the display.
Adjust Braille settings. Go to Settings > General > Accessibility > VoiceOver > Braille, where you can:
For information about common braille commands for VoiceOver navigation, and for information specific to certain displays, go to support.apple.com/kb/HT4400.
Set the language for VoiceOver. Go to Settings > General > International > Language.
If you change the language for iPad, you may need to reset the language for VoiceOver and your braille display.
You can set the leftmost or rightmost cell of your braille display to provide system status and other information:
Set the leftmost or rightmost cell to display status information. Go to Settings > General > Accessibility > VoiceOver > Braille > Status Cell, then tap Left or Right.
See an expanded description of the status cell. On your braille display, press the status cell's router button.