Up and down double camera doorbell, can be a full range of monitoring the door movement. The upper angle of view observes and records what is happening, and the lower angle of view monitors the movement of the door, such as express door care.

Back prompt light, through the reflection of the wall to achieve the use of functional feedback. Weakening the feeling of monitoring and making the neighborhood more harmonious.

The large doorbell is convenient to press, while the lens viewing angle is compensated by the micro-warping angle, the doorbell caters to the man-machine and is convenient to press.