【4 unlocking methods】The advanced and convenient smart door handle has 4 unlocking methods: fingerprint unlocking, password unlocking, app control unlocking, emergency spare key, fingerprint input only takes 0.3 second, and the way of fingerprint and password eliminates the need for you to forget to bring the key troubles, making access more convenient. 【Smarter, Safer】 The door lock has biometrics and supports App control. The dual management of fingerprint and password provides a high level of security. You can realize fingerprint, password management, unlocking records, automatic locks, access modes, and security locks through the App. to know everything about your home. 【Classic Design But Stronger】The door handle continues the classic style design, equipped with fingerprint lock function, password function and modern app control, which can easily protect your personal room privacy, ideal for bedroom doors, offices, apartments, hotels Fingerprint door handle smart lock. 【Easy to Install】Fingerprint door handle door lock can be easily installed with a screwdriver in minutes, fits most US doors, easily replaces existing door locks. Provide detailed installation steps and videos. 【Note】 The smart door lock is suitable for wooden doors, fire doors, security doors, etc. between 30-55mm. 4 AAA batteries are required for installation（Battery needs to be purchased by oneself）, and the USB interface can also be used for emergency power supply when you are in low power mode, but please be careful not to charge it, and replace the battery again. If you have any other questions, please feel free to consult us! › See more product details