Item Type: Smart Door Lock Material: Zinc Alloy Color: As Pictures Shown Weight: Approx. 963g / 34.0oz APP: for Tuya APP Fingerprint Capacity: 100 Battery Model: 4 AAA (Shipped Without Battery) Product Size: Approx. 16.5x6.5x6.2cm / 6.5x2.6x2.4in Applicable Door Thickness: Approx. 40-60mm / 1.6-2.4in Applicable Scenes: Office, Home, Hotel, Home Stay, etc. 1、Multiple Unlocking Methods: There are many ways to unlock the smart lock. You can unlock it through four different ways, including mobile APP, fingerprint, password and key. 2、Easy Installation: With clear manual and easy installation, the entire smart fingerprint door lock can be installed in only ten minutes. 3、Good Performance: The comfortable experience of mute lock body, powerful quality and the power of dispelling restlessness. 4、Applicable Scenes: Smart fingerprint door lock with APP is suitable for office, home, hotel, home stay, etc. Providing you great using experience. 5、Thickened Panel Design: The thickened panel of the smart fingerprint door lock can stand the test of time. Exquisite workmanship, beautiful appearance.