SPECIFICATIONS High Definition: 8.0 Megapixels Hign-concerned Chemical: None   4K 8MP Dual Lens PTZ WIFI Camera Dual Screen Ai Human Auto Tracking Outdoor 4MP Security Video Surveillance Camera Tuya Attention!! Difference between 4MP and 8MP 4MP VS 8MP   8MP=2 Lens=4MP+4MP 4MP=2 Lens =2MP+2MP   Attention! The maximum range of WiFi signal accepted by the   camera is 3M. If the distance exceeds 3M, an extension cable is   required. The available extension cable specifications are 2A voltage,   otherwise the network transmission will fail   Main Features- Dual-lens dual-sensor dual-screen, wide-angle Viewing + Long Distance Viewing to achieve clear monitoring from far and near;- Dual light source design, built-in infrared light + white light, night vision infrared and night vision full color can be set;- Pan Tilt Move: Bottom Lens: Horizontal: 270 degree; Vertical: 90 degree;- Support TF storage and cloud storage (need pay in Tuya app);- Two-way voice intercom, two-way video synchronous recording and playback;- Humanoid detection Smart Alert: Motion Triggered with Alarm, APP Push notifications and Alarm recording;- Auto Tracking: When ip camera detects object moving, it will auto move follow the object;-Smart Phone APP name: ''Tuya'' from Google Play or iOS APP Store; Packing List1x PTZ WIFI Camera1x User Manual1x Power Supply1x Screws BagWarm tips: the SD Card is optional. 4MP 8MP comparison4MP camera version:Means that the single lens is 2MP, so the dual-lens is 2MP+2MP=4MP.8MP camera version:Means that the single lens is 4MP, so the dual-lens is 4MP+4MP=8MP. Dual Lens and Dual ScreenThere are 2 video screens in APP, the upper one is fixed position camera and the lower one is PTZ camera.270° Pan & 90° Tilt RotateDue to the horizontal 270° and the vertical 90 °, you can remotely control the wifi outdoor camera to view every corner via your mobile phone.Smart Night VisionBuilt -in White LED and IR LED, you can choose color night vision or infrared black and white night vision.IP66 Waterproof / DustproofThe camera is equipped with IP66 case , which is waterproof, sun-proof and dust-proof. It is suitable for any environment.AI Human Detection AlertsQuickly finds human targets and immediately sends App notifications to your phone so you can see what's happening anywhere.AI Auto TrackingWhen someone passes through the protected area, the camera will detect the person's movement and follow the person.Real Two Way AudioBuilt in microphone and speaker,support real time video,which allows you talk with your visitor in real time wherever you are.Support TF Card Storage and Cloud Storage(Need Pay For)The camera supports up to 128GB TF card local backup and also provides cloud storage service(Need to pay extra cost).Support For Alexa And Google AssistantWifi Connection & LAN ConnectionSometimes you might just have one way to connect the camera , don't worry , this camera supports wireless and wire connection at the same time.Tuya App Remote AccessYou can get a live broadcast of the capture video anytime, anywhere. Supporting Multiple Users watching live video at the same time via phone APP.     About Power Adapter Plug Type *For the power adapter plug options, EU/US/UK/AU optional*If you are not sure which type of plug to choose, please refer to the picture below