4.3 inch super large HD screen with 1080P resolution, high-definition images With PIR motion detection, through the newest algorithm, the equipment pushes accurate alarms, reduces mistake reports Support WIFI connection, wide angle 135 degrees, wider field of view Ding Dong machine with infrared night vision, with doorbell ding dong Support up to 128G TF card Support two-way audio Built-in 5000mAh lithium rechargeable battery Support taking pictures and audible video recording Work with mobile phone APP by WiFi connection Specifications: LCD Display Size 4.3 inch Display Resolution 2.0MP-1920x1080 Focal Length 2.5mm Angle of view 120° Wide angle Audio Input/Output Built-in microphone Video Video Compression H.265 Resolution 1920x1080 @25fps Stream Double stream Night Visibility 1pc IR-LEDS Alarm PIR Motion Detect YES (If PIR on, only can use 1200 times in full battery, please note this!!!) Network Wireless Standard 2.4GHz WiFi IEEE 802.11b/g/n App By Phone Android, iOS (app: Tuya smart) Storage Mobile phone memory Yes SD TF Card 8-128GB (not included) Cloud Function Yes Physical LCD Dimension 110*24*88mm Camera Machine 46(L)*37 (H) mm (Metal) Power Power Supply 5000mAh battery Charge Port MICRO USB Consumption Working mode 380mA(IR On) Stand by mode 200uA Other Feature Weatherproof Yes User Accounts Total 4 Users (Admin user and normal user) Working temperature -20℃ to 55℃ Relative humidity 85% non-condensing