The lens of the camera has 3.6mmfor monochrome. Provides audio function. Mic Function. Can view the objects without outside light source, it is a full-function collector: compact volume, low power consumption, high sensitivity, easy to operate, install and hide. Extra suitable for video meeting, schools, supermarkets, shops, workshops, warehouses, offices, visual telephone, visual e-mail, CP multi-media-toys, games, etc. Equipped with clip-type support, which can be detached at your option, or be used to adjust the location to your desired level. Horizontal solution: 380 TV Line.