This is a video with general info on how this lock system works and how to reprogram the manager card and user cards/Fobs if needed.
Part# RFID-2B-B and RFID-2B -G
Buy this lock here:
https://lockconnection.net/hidden-rfid-cabinet-drawer-lock/
Website is here:
https://lockconnection.net/
Feel free to contact us with any questions.