The Safe Box: Features a digital keypad for code entry, a manual knob to retract the locking bolts, and a hidden keyhole for emergency access.Emergency Keys: Two override keys are included to open the safe if you forget your code or if the batteries die.Mounting Hardware: Expansion bolts (anchor screws) are provided to secure the safe to a wall, floor, or shelf through pre-drilled holes in the back or bottom.Power Source: It typically requires four AA batteries to power the electronic keypad and internal solenoid.