Visible Door Viewer, 3.5 Inch Display, Clr Image, Visible Door Viewer, 24-Hour Monitoring, High Resolution Color Security Comfort Door Viewer

3.5 inch display, see the image of visitors clrly Widngle lens: see everything outside at a 120 degree view Low consumption and high resolution. It provides an extra security and convenience for you and your family. Description Use the existing door without brking the door structure without the need of drilling, no wiring and installation can be used. The product is equipped with NaIntelligent operating system and user-friendly design. It is sy for old and children to use, to your family security. Ftures: 3.5 inch color screen display, see the image of visitors clrly. Wide-angle lens: see everything outside at a 120 degree view. Low consumption and high resolution. It provides an extra security and convenience for you and your family. sy to use: short press to turn on, press to turn off. 24 hours monitoring with high definition color image sensor. Specification: Condition: 100 Brand New Resolution: 480 x 320 Power Supply: 4 * batteries (Not Included) LCD Screen: 3.5" Door Hole Range: 14-28mm Door Thickness: 40-100mm Indoor Device Size: Approx. 12 x 6.2 x 1.8cm / 4.7 x 2.4 x 0.7" Outdoor Diameter: Approx. 3.2cm / 1.3" Package Weight: 196g Package Included: 1 x Outdoor Unit 1 x Indoor Unit 1 x Screws Set 1 x User Manual Note: Plse note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. This product does not have a doorbell dialogue function, it is NaOnly used for viewing the situation outside the door.