Monitors: Ultra slim (only 26mm) Touch Screen 7 LCD monitors; OSD (on screen) menu selection: to adjust volume, colour, brightness, scene mode, change ringtone and so on; Loud speaker; 15 different ringtones; Allows you to check outside and talk to people outside at any time you wish to, even if no one rings the bell; Brushed aluminium face plate. Mounting type: surface mount Dimensions of monitor: W225xH155xD26mm. Door Station with 4 buttons High quality Sony CCD camera. Finish: Brushed aluminium Mounting type: Flush mount. Connect direct to an electric or electro-magnetic lock Camera: 1/3" Sony CCD Resolution: 420 TV lines Video signal: 75V 1Vp-p Viewing angle: 76 wide-angle camera Ajustable Min. illumination: 0.1 Lux Night vision with 6 infrared LED Dimensions: W130xH340xD42mm. System comes with power supply.