Battery operated electronic lock. Standard hotel function lock: enter any code to lock the safe then re-enter that code to unlock the safe. Once the safe is unlocked that code will be erased. . Standard function is available.. Electronic override can be set by user. Mechanical override keys used to bypass the electronic lock if the batteries expire check battery warning. Anchor holes provided to secure your safe to the wall or floor. Two-3/4 diameter solid steel locking bolts. Pry resistant recessed door for anti-theft protection. Concealed hinges prevents door removal and ensures a lifetime of smooth operation. The keypad will go into a lockout penalty if combinations are entered incorrectly.