Features 4 in 1 SMART DOOR LOCKSmart door lock has a fingerprint unlocking, APP unlocking, key unlocking, password unlocking four unlocking methods, is a perfect fingerprint smart door lock with handle INTELLIGENT LIFEA key Fingerprint smart door lock uses fingerprints to open the door and is able to add 50 fingerprints, and supports APP control, check the unlocking record through APP, you can set 100 passwords or set a temporary password and share it with friends, family or visitors, intelligent security technology will guard you and your family's safety! EASY INSTALLATIONThe smart door handle door lock can be easily installed in minutes with a screwdriver, we have detailed installation instructions, very easy to install, no wiring and no drilling, fits most US doors, meets your every need! PREMIUM DESIGN & HIGH QUALITY MATERIALBiometric door lock with handle is made of high quality aluminum alloy material, it is clear, smooth and easy to clean, and with classic door handle design, it also adds fingerprint lock, password lock and APP unlock function, it is the ideal choice of smart door lock for bedroom door, office, hotel, apartment! NOTEThe smart door lock is suitable for wooden doors between 30-55mm, fire doors, security doors, etc. 4 AAA batteries are required for installation, when you low battery mode after the USB interface can also be used for emergency power supply, but please note that do not charge, replace the batteries again, Package includes: 1*Door Lock if there are other problems feel free to consult us!