luxury aluminium camera,good design,CMOS or CCD sensor.6 LED lights,nightvision. 
handfree indoor monitor,7 inch TFT,clear image. 
 intercommunication,monitoring the outdoor,unlock.. 
 Intercommunication is available between indoor and outdoor unit..  
Brightness, chroma and ring adjustable.  
 3-chord melody rings for option.  
two cameras can connected with four monitors.(different choice) 
four wires,DIY installation 
Including in one kit:One indoor monitor, one outdoor camera, power adapter, user manual,cables. 
Packing detail: Color box,5sets in one carton. 
surface mounting for monitor,Flush mounting for camera     
monitor dimension:230(L)x180(W)x18(H)mm  
camera dimension:125(L)x185(W)x50(H)mm  
Wiring requirements:30M: RVV4 X 0.5 mm,50M: RVV4 X 0.75 mm,100M: RVV4 X 1.0 mm

Data of Technology:
Night vision illumination distance; more than 2 meters    
Gain control: Automatic    
Working temperature: -10 C- 50 C 
Illumination: 0.1 Lux    
Camera angle: 92 C degrees wide-angle    
Adapter input voltage: AC100-240V  50Hz-60Hz    
Adapter output voltage  current: AC14.5V  1200mA    
Talk time delay: 90S     
Monitor time delay: 30S     
Dissipation: stand-by <0.5W     working <10W    
Relative humidity: 10 % - 90%(RH)