Specification:Item Type: Smart Door LockMaterial: Zinc Alloy, Stainless SteelWeight: Approx. 983g / 34.7ozBattery Parameters: 4 x AA Batteries (Excluding)Fingerprint Capacity: 100App: for TTLOCKDoor Opening Password: 100 GroupsUnlocking Methods: Fingerprint Unlocking, Key Unlocking, IC Card Unlocking, Password Unlocking, Indoor Knob Unlocking And Mobile Phone UnlockingApplicable Door Thickness: 30-55mm / 1.2-2.2inUnlocking Time: ＜0.5sScope Of Application: Office, Home, Hotel, Home Stay, etcHow to Use:Install four AA batteries (not included) after the installation according to the instructions in the manual.Package List:1 x Key1 x IC Card9 x Screw1 x Manual1 x Gasket1 x Latch2 x Accessory2 x Door Lock