1.3.5/2.8 inch TFT screen                                                
2.Power:2500mAh Li-ion battery*1pcs,ultra long life                                                                        
3.Photo shooting and storage for evidence        
4.Easy operation and installation-no need wire  
5.Indoor host device monitors outdoor conditions dynamically and directly                      
6.Radiation less and low power consumption    
7.1.0 mega pixel high-definition viewer                
8.Automatic energy saving mode                              
9.170 degree viewing angle                                      
10.Barrel:14mm-55mm                                            
11.Door Thickness:45mm-90mm