Focus 40 Braille Display configuration Menu options – YouTube
https://www.youtube.com/watch?v=X2emrX8fFy0
Educational Services for Blind/Low Vision -Specialized Instruction in Technology/Braille/Nemeth and other Blind skills
https://www.youtube.com/watch?v=X2emrX8fFy0
https://www.youtube.com/watch?v=TfBCn-hQTJc
https://www.youtube.com/watch?v=zicOefubeIc
https://www.youtube.com/watch?v=md0osGVpb6I
https://www.youtube.com/watch?v=5ymxWrUCtEE
https://www.youtube.com/watch?v=TBcBQ_4KYwo
https://www.youtube.com/watch?v=OHTLrVqHgzQ
https://www.youtube.com/watch?v=MwXmmOcFTZ8
https://www.youtube.com/watch?v=taQBrPci-iE