1??Multiple Opening Modes: Adopts advanced fingerprint recognition, non?contact card swiping and password as the door opening key, and has a variety of door opening modes to choose from, which is more flexible, more convenient and safer. 2??Durable Construction: The material is made of high?quality zinc alloy, and the surface is matte. The appearance is modern, simple and beautiful, and durable. It is not suitable for breaking in to protect the family's personal and property safety. 3??Virtual Password Input: The virtual password input has the function of preventing others from prying eyes. If your correct password to open the door is 123456, you can also enter 00000+123456+000 to open the door. 4??Rigorous Testing: The door lock modules have been tested for high and low temperature, vibration, aging, etc., are waterproof, moisture?proof, and mildew?proof, and adapt to harsh environments. 5??Low Power Consumption: Powered by 4 AAA batteries (batteries not included). Low power consumption design. The normal service life of the battery is 1 year. Low battery alarm. You can purchase the battery at any convenience store for replacement.