Biometric Fingerprint Pistol Vault. More than 25 user fingerprints can be registered--LED display notifies user if print is accepted--Secure hidden key override--Pre-drilled mounting holes--Deluxe egg crate bottom pad for extra protection--Heavy duty steel construction--Durable podwer coated black matte finish--2 3/4" steel locking bolts on door--Motorized bolts for easy access--Mounting hardware included--Low voltage alarm--External backup battery box for emergency use--Requires 4 "AA" batteries (not included).