HIDALIFE Door Knob with Keypad, Keyless Entry Door Lock, Front Door Knob Child Proof, Auto Lock, Easy Installation for Home, Office, Apartment, Garage Security,Satin Nickel 4pack

Convenient Keyless Entry: Enjoy the ease of keypad door lock with 1 master code and 9 access codes available. Create passwords 4 to 15 digits in length, fitting well for bedroom, home, apartment, garage and office. | Advanced Security: With mute function, smart door knob prevents others from peeping your codes by listening to the sound. The combination of mute and the 15-digit password boosts the door lock's security of electronic door lock. | Versatile Fit: Designed to fit most US standard doors, its adaptable knob suits both left and right-handed doors. The latch is adjustable to fit 2-3/8-Inch (60mmor 2-3/4-Inch (70mm) backsets with 54mm door hole in diameter. | Multi-Functional: It suits various doors like entry door, garage, back door, bedroom. It is recommended to install the inside knob in indoor. It includes an emergency power supply for battery depletion situations. | Easy Installation: Set it up in minutes using only a screwdriver, no special skills required. The backlit keypad door knob ensures convenient code entry even in dark. Please remember to place 2 batteries on each side of the battery box; 4 batteries are needed (not included in the package).