Fingerprint Unlock - Family Friendly:Unlocking with a fingerprint takes just 0.3 seconds, offering quick access for family members; track all unlocking history using the smart app Code Unlock - Guest Friendly:Remotely create instant or scheduled door codes for family, visitors, and guests using the smart app, even when you are not at the property; for homeowners, rental hosts, and property managers Secure Your Home:Automatic door locking to ensure your door is always locked after you leave; an alarm will trigger if unwanted intruders try to enter; privacy mode disables all access methods from outside when you need it; stay informed about your door's activity with all security alerts pushed to your smart app One Card, All Locks:Use one card to unlock all doors, eliminating the need to carry multiple keys and the confusion of which key is for which door; this feature is especially friendly for property managers who manage many properties Easy Installation:Easy to install with just a screwdriver in 20 mins; door handle is reversible for both right-handed and left-handed doors, Manufacturer: QZCX