Intelligent human detection Autotracking，With human detection alarm and motion tracking alarm the camera could detect and follow the humanoid by infrared mode and color night vision mode Smart alarm push，Whenever motion is detected, the surveillance camera will immediately trigger an alarm, sending alerts and push notifications to your device. It has 2 version: WiFi version: camera need to connect with your home wifi, 2.4G wifi, not 5G wifi. and dont have 4G sim card slot. 4G sim car