Aibocn Smart Lock, Electronic Keypad Deadbolt Lock, Keyless Entry Door Lock with Auto-Lock, Anti-Peeping Password, Easy to Install and Program, Security Smart Door Lock for Home Bedroom, ??【Keyless entry door lock make faster】2 ways to unlock or lock: password or mechanical key. When your arm is full of groceries, one-touch unlocking smart lock can be much easier and faster than fumbling for keys. In addition, the door lock keypad glows so you can easily enter your home without keys in the dark. More importantly, the keypad door lock works with most standard residential wood doors (38mm to 48mm). Perfect for bedroom, apartments, hotels., ??【Multiple protection mechanisms make safer】When you go in and out of the bedroom, appartment or garage, the smart door lock will automatically lock at a fixed time (10-999 s, customizable). Plus, you can enter 1-6 random numbers before entering the password to prevent the password from being seen. More importantly, after the 4 failed password entry, the smart deadbolt will sound an alarm. So our smart door lock greatly improve your home safety., ??【Illustrated programming make easy】 Our instructions have detailed programming instructions with pictures, you just follow the pictures and explanations, you can master how to program smart lock in minutes. In addition, you can also program up to 10 easy-to-remember codes for your family or friends, especially suitable for children and the elderly bedroom. So our deadbolt smart lock make your life easier., ?【High quality door lock make durable】The front panel of this door lock is zinc alloy, the back panel is ABS plastic, specially tailored for apartments , garage and bedroom door lock, this indoor lock is not waterproof, can only be used inside the house. (Working temperature :-4°F~158°F). What's more, the deadbolt lock adopts energy-saving design, 4 AA batteries provide 8000 openings (about 6 months). So you don't have to change the battery frequently., ??【DIY installation make easy 】With just a screwdriver, watching a short video and reading the user manual, the electronic door lock can be easily installed in 15 minutes. No need for a locksmith, no need to connect any wires, keypad deadbolt is very easy to install. If you have any questions, please feel free to contact us. We are committed to giving customers the best after-sales service. We will solve the problem for you within 24 hours., ,