Smart Electronic Wireless Video Doorbell Escam C01 3.5 inch Digital LCD 120 Degree Peephole Viewer photo visual monitoring electronic cat eye camera doorbell camera Invisible camera: Using invisible camera with a similar appearance to the 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 wide-angle lens: equipped with a 120 wide-angle lens, clear insight into the details outside the door to reduce safety hazards. Zinc alloy outdoor sub-machine: Zinc alloy material is vandal-proof, it can prevent human damage to the maximum extent Megapixel: With a professional security camera, you can restore picture details better, giving you a great 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) Packaging size?150x137x48mm Packaging weight?212g