FEATURES Manual Lock/Unlock lever Imaginary Number Features Manual Lock mode Automatic Lock Re-lock features Self Check-up function Fire Alarm and Emergency System Anti-Prank Alarm Force Break-in Alarm Pick-Proof Anti-Hacking Alarm External Emergency Battery Terminal Low Battery and Replace Battery alarm Internal Force Lock Digital Number Pad Activity LED Status notification Volume Setting Etiquette Mode Pin/Touch Key Authentication One Touch Functionality Easy Key and Pin Registration/Delete Backlighted number pad