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 Advanced touch-type number pad Activity LED Status notification Volume Setting Etiquette Mode Pin/RF CARD Authentication Adjustable Left Hand and Right Hand Setting Easy Key and Pin Registration/Delete Backlighted number pad