【Large HD Display】 4.5-inch high-definition IPS screen with 960x540 resolution for clear viewing of visitors. 【Robust Security】 Full metal zinc alloy peephole design resistant to theft, prying, and peephole spying. 【Wide-Angle Surveillance】 1 million pixel professional security camera with 145-degree ultra-wide angle for comprehensive coverage. 【Smart Motion Detection】 PIR sensor triggers automatic photo capture and video recording to safeguard your doorway. 【Night Vision】 Enhanced night vision capability ensures round-the-clock monitoring of outdoor situations. 【Versatile Functionality】 Features include doorbell, do not disturb mode, monitoring, photo capture, video recording, and video messaging. Specifications: Display: 4.5-inch IPS screen, 960x540 resolution Camera: 1 million pixels, 145-degree wide-angle Material: Zinc alloy peephole Storage: TF card support, up to 32GB Power: 3500mAh rechargeable lithium battery Alternative Power: USB and power bank compatible Door Compatibility: 12-45mm peephole, 35-110mm door thickness Features: PIR motion detection, night vision, doorbell function Modes: Home mode, Away mode, Do Not Disturb mode