[ 4+2 Unlocking Ways]This smart door lock has 4 + 2 multiple ways to unlock: passcode, TTLock App, two mechanical keys to unlock, high-end semiconductor fingerprint recognition unlock, remote control, voice control, a variety of unlock methods not only secure, but also improve the convenience of daily use. Make your life smart and simple.[ Easy to Install]The smart fingerprint door lock is super easy to install. It takes only 15 minutes to install by one person with a screwdriver. Door thickness of 1-3/8 inch to 2-1/8 inch (35 to 55mm). Door hole diameter 2-1/8 inch (54mm). Adjustable deadbolt: 2-3/8 inch (60mm) or 2-3/4 inch (70mm), that means you can adjust the distance between the door edge and the lock center rod, suitable for left and right doors.[ High Security and Privacy Protection ]Smart lever door lock is made of zinc alloy material, anti-corrosion, sleek and modern, it has a simple, stylish bold look. It is perfect for home office, apartment, garage entrance door, storage room, warehouse, basement, bedroom, etc.[ 0.3 Sec Unlocking Fingerprint Recognition Technology]This is high-tech intelligent biometric fingerprint door lock handle, using advanced semiconductor biometric fingerprints identification technology. This biometric fingerprint recognition technology can read fingerprints in 360 degrees within 0.3s, very nice Press and rounded ergonomically, it is easy to program different fingerprints for keyless access by the whole family.[ App Control ]The smart fingerprint door lock handle supports IOS and Android devices. with the free TTLock App, You can set and share temporary eKeys to friends, visitors or housekeepers. It will be record and transfer who comes and goes, at the same time automatic locking and passage mode settings, bringing security and convenience to your life.Colour:BlackMaterial:AlloyPackage Contents:1 set x door locks 1 set x installation accessoriesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.