Function description: 1. Fingerprint sensing has a fingerprint sensing device that can be unlocked by touching the index finger, and the unlocking method is more concise. 2. Voice communication After the guest presses the doorbell, the owner of the room can press the corresponding switch button to carry out voice call function, which is more convenient for communication. 3. Innovative unlocking method combines the feeling of image hand shifting the hour hand. After unlocking, it can be rotated with one tap of hand, and the breathing light, unlocking method is more intuitive and portable. Use process description 1 When entering the door, the door can be opened by turning the handle 90 degrees clockwise after unlocking the fingerprint. The breathing light displays green light. After entering the door, the door lock will automatically return to the breathing light to display red light. 2 When entering the door, the door can be opened by turning the handle 30 degrees clockwise. After going out, the door can be opened by turning the handle 30 degrees. The appearance design, the function is indicated by scale. The handle can be imagined as a pointer, and the lock can be unlocked by turning to the corresponding scale door.