Multi-User Sharing & Works With Alexa: This Outdoor Security Camera Can Support Up To 20 Users To Watch The Video At The Same Time, So You Can Share The Surveillance Home Camera With Your Family And Friends, Which Is An Extra Security Assured. Compatible With Alexa And Google Assistant. Camera And App Are Easy To Install, Simple To Control. Two-Way Audio & Alarm Siren: Wifi Security Camera Enables You Talk With You Family Or Visitors On Your Mobile Phone. You Can Set An Audible Alarm To Sound A Loud Alarm When A Moving Object Is Detected,Then Built-In Advanced Microphone; Speaker Allows You Scare Away Uninvited Guests, And Say Hello To Welcome Guests. Ai Human Detection & Motion-Tracking Alerts: Motion Tracking Supports Security Cameras To Accurately Detect Objects And Automatically Track Them In A Super Large Range Of 100° And 17 Feet. Ai Human Detection Reduces False Alarms Caused By Pets, Insects, And Fallen Leaves. You Can Also Set Different Sensitivity (Low/Medium/High) According To Your Needs. After Enabling, Home Security Cameras Will Begin To Automatically Record And Follow The Object In Motion, And "Alarm" When Needed. 2K Hd Image & Starlight Color Night Vision: The Security Camera Can Support 2K Hd(2304X1296P) And 12×Digital Zoom,Much Clearer Than 1080P, Ensuring That You Can See Ultra-Clear Details During The Day And Night. The Outdoor Security Cameras Support Starlight Color/Full Color/Smart/Infrared Night Vision.Whether In The Presence Of Faint Starlight Or Complete Darkness, It Can Ensure That Objects Within 30 Feet Can Be Clearly Monitored, Giving You The Best Night Vision Experience.