1. The 140° camera is very subtly concealed, preventing visitors from feeling spied on and attracting vandalism.
2. The volume of the microphone can be controlled independently of that of the speaker.
3. A light sensor switches the camera to perfect black/white night vision in the dark.
4. Four anti-fandal screws secure the outdoor unit.
5. 2 relays can be controlled with the optional keypad.
6. The very powerful loudspeaker is adjustable in several steps.
7. Brushed aluminium and glass frame