Smart life, starting from keyless, you can open the door lock through fingerprint, touch input password, card door, face recognition, APP remote control. This product uses blockchain distributed data storage encryption technology to store data such as user passwords in different databases for encryption protection. At the same time, a built-in hidden infrared high-definition camera is designed. When someone stays in front of the door for more than a preset time, the video is automatically recorded and uploaded to the user's mobile phone and an alarm is sent. Allow users to rest assured and safe use.