Connected Doorbell and Video Doorphone - Universal - Smart Wireless Video Doorbells(Black) Highlights Universal Smart Wireless Video Doorbells(Black) Escam C01 Smart Electronic Wireless Video Doorbell 3.5 Inch Digital LCD 120 Degree Pephole Viewer Photo Surveillance Visual Electronic Surveillance Camera Camera Camera Camera Invisible Camera: Using the invisible camera with appearance similar to traditional peephole, with one-click viewing without storage to protect privacy. Fashionable design: fashionable and classic design, simple features, it is suitable for European and American aesthetics. 120 Angle Lens: Equipped with 120 wide-angle lens, preview details of details outside the door to reduce security risks. Zinc alloy submachine: zinc alloy material is vandal proof, it can maximally prevent human damage. Megapixel: With a professional security camera, you can restore photo details better, giving you an excellent visual experience. Product parameters Screen 3.5" LCD, 480*320 Camera: 1MP Camera shell: zinc Door hole diameter: 14-28mm Door thickness: 40-100mm Power supply: AAA LR03 AM-4 1.5V Battery x 4 ( not include) Package size: 150x137x48mm Package weight: 212g