Main Featuers:<br />Can be installed on the door<br />Uses  CMOS image sensor<br />Monitors the situation out of the door and presses monitor button to turn on the display to see outside anytime. <br />With alarming function<br />It will shut off when nobody answers<br />Resolution: 320 x 240 <br />Image sensor: 300，000 Pixel CMOS<br />Optical lens: View angle 60 degrees<br />Peephole: View angle 130 degrees<br />LCD Screen: 3.7 inch <br />TFT memory: 4GB micro TF card<br />Power source: Rechargeable Li-on battery<br />Door thickness:  35mm-65mm<br />Barrel hole: 12 mm-14mm<br /><br />    Specifications<br />Specification<br />	 Type: Practical， Safety                                                  <br />                        For: All                                                  <br />                        Functions: Multi-functions                                                  <br />                        Material: ABS， Electronic Components                                                  <br />                        Occasion: Office， Home                                                  <br />                        Color: Gold                                                	<br />Dimension and Weight<br />	 Product weight   : 0.4 kg                                                  <br />                        Package weight   : 0.6 kg                                                  <br />                        Product size (L x W x H)   : 15 x 8.76 x 1.45 cm / 5.90 x 3.44 x 0.57 inches                                                  <br />                        Package size (L x W x H)  : 18 x 13 x 8.5 cm / 7.07 x 5.11 x 3.34 inches                                                	<br />Package contents<br />	 Package contents: 1 x Indoor Viewer， 1 x Outdoor Doorbell， 2 x Rechargeable Battery， 1 x Charger， 1 x FPC Cable， 1 x Steel Bracket， 4 x Screw， 1 x English Manual                                                	<br /><br /><br /><br />                                                <br />