3 in 1 Keyless Entry Door Lock: VCHOO door locks for front door supports multiple ways to unlock: App Control, 100 user codes, one-time code, 2 physics keys. Keypad door lock with handle play an important role in self-housing, hosts, offices, rental property management, hotels. App Control Front Door Lock Set: Manage all the locks via the Smart Life app, easy to set secure passwords, manage access rights, and view comprehensive access logs. The one-time password set via the app is widely used by maintenance workers, friends, pet sitters, cleaners, etc. Our smart door locks can help you realize your smart and safe life anytime and anywhere. Low Battery Alert, Efficient Living: Once the keyless entry door lock appears green light, please replace the low batteries in time, in special cases, you can borrow the emergency TYPE-C charging port of the door lock to unlock, no need to worry about being locked out of the home. (Notice: 4 AA batteries are not included in the package). Lock in Seconds, Effortlessly Secure: The front door lock set features an auto-lock and one-touch lock function. It can be set to auto-lock after 10-30 seconds and locked instantly with a single press, easily locking in family happiness and security. (Tips: There is also a button on the back of the electronic door lock.)