Feature:1. [Multiple Unlocking Methods] Four methods of fingerprint, password, APP and card swiping can be used to unlock, a variety of functions to meet your different needs.2. [Fast And Sensitive] Semiconductor fingerprint sensor, 0.5s fast fingerprint recognition, administrators can find the record in the unlock record of the application.3. [Automatic Lock] This smart door lock helps you unlock easily, ergonomically designed, it will automatically lock for you, fully guaranteeing your home security.4. [Easy To Use] Can hold 100 fingerprints, download for TTLock APP, lock and unlock in one step, you can set and share passwords for your family and guests.5. [Alarm Function] Get an alarm when someone unlocks it, monitor the door status and access history at any time, suitable for aluminum doors, sliding doors, revolving doors, etc.How to Use:Install the door lock, download for TTLock, add fingerprint and user, you can use it (read the English manual in detail).Specification:Item Type: Fingerprint Door LockMaterial: Aluminum AlloyFingerprint Storage Capacity: 100pcsBattery Parameters: 4 x AA Batteries (Not Included)Applicable Door Thickness: Approx. 35-50mm / 1.38-1.97inWorking Temperature: -20-65 (℃)Scope of Application: Wooden Doors, Entry Doors, Apartment Doors, etcUnlocking Method: Fingerprint, Password, APP, Card SwipingWeight: Approx. 2036g/4.5lb Package List:2 x Fingerprint Door Lock (Battery Not Included)2 x Rubber Pad2 x Key2 x IC Card8 x Accessories1 x Lock Tongue1 x Door File1 x Door Buckle4 x Screw1 x English Manual