- Unlock Your Door in 3 Convenient Ways: Enjoy the advanced 3-in-1 keyless entry with a biometric fingerprint scanner, anti-peep virtual password, and traditional physical key. Store up to 50 fingerprints with a remarkable 99% recognition accuracy, unlocking in just 0.3 seconds. Includes two mechanical keys for emergencies. - Easy Installation: This fingerprint door lock is compatible with US standard doors, accommodating backset measurements of 2-3/8 inches (60mm) and 2-1/8 inches (70mm), and door thickness ranging from 1-3/8'' to 2-1/8'' (35mm-55mm). Installation is hassle-free—no wiring or drilling needed. Use a small screwdriver for a quick setup, with adjustable latch for perfect fit. - Reliable Power Solution: Operates on 4 AAA batteries (not included), which can last up to 12 months depending on usage. Features low battery reminder and emergency USB charging port, ensuring you have access at all times. Traditional key unlocking provides added security. - Enhanced Security & Modern Design: Made from durable zinc alloy, the fingerprint door lock combines anti-corrosion properties with a stylish appearance, making it suitable for offices, apartments, and private spaces. Ideal for securing your home, office, hotel room, or any personal environment, offering superior security and privacy protection. - Practical Applications: Perfect for busy households that require fast access for multiple users, such as family members or employees. Ideal for rental properties and short-term stays, providing a secure and easy way for guests to access premises without traditional keys.