Detailed description High-quality color 7" LCD monitor "touch screen", elegant design in white color, touch buttons, backlit buttons, icon menu, 18 mm thickness. Supports transfer function to GSM number, intercom function, choice between 12 8-chord melodies and different sounds for different uses. Automatic recording of what is happening in front of the door. Power supply 24 Vdc, resolution 800 x 480, wiring with 2 wires, white body color.