Feature: 1. 5 in 1 Unlock Method: Smart lock enjoys hassle-free entry with our 5 in 1 unlock method, including TTlock APP, fingerprint, code, key, and card access for added convenience and security. 2. Auto Lock Function: The front door lock keeps your home secure with auto-lock function, ensuring your door is always locked when you need it to be, and giving you peace of mind when you\u0027re away from home. 3. Smart TTlock App: Control your door lock remotely with the Smart TTlock App, granting entry to guests or service providers and monitoring lock activity from anywhere. 4. IP65 Waterproof Design: Our IP65 waterproof design ensures that your fingerprint door lock stays safe and functional, no matter the weather conditions. And the fingerprint door lock is suitable for front door, bedroom, etc. 5. Easy Installation: Our electronic, keyless entry door lock is easy to install, meaning you can upgrade your front door security in no time. The handle lever set makes it easy to open your door from the inside, and the front door lock set is designed to fit most standard doors. (The handle lever set are optional) Specification: Product material: Zinc Alloy + ABS Plastic Product color: Black Product size: Front panel: 137 x 60mm / 5.39 x 2.36in Back panel: 155 x 65mm / 6.1 x 2.55in Spring blot size: 60/70mm - 2.36/2.75in adjustable mortise Suitable door thickness: 38-48mm / 1.49-1.88in Unlock method: for TTlock App, fingerprints (100 groups), IC cards (200 groups), passwords (150 groups), mechanical keys (2pcs) Password length: 6-9 digits Static power consumption: ＜30uA Working power consumption: ≤200mA Working temperature: -20 - 70°C Working humidity: 20%-80%RH Power supply method: 4 X AA alkaline batteries (not included) Battery life: 1 year of normal standby . Package List: 1set * Smart Door Locks 3 * IC Cards 2 * Mechanical Keys 1set * Tools Note: The 4 X AA alkaline batteries are not included.