Built in microphone and speaker,no matter how far away ,you can easily talk to the baby,child,family through the camera in 24/7 remotely.Even if you are out of your home,through the camera,you can talk to the delivery man how to deal with your package.PIR Motion Alarm - If the FIR Alarm function is enabled,the camera will send the Alarm information to the User1s Mobile Phone when some invades the surve?ance area.PAN TILT ROTATION - Horizontal:355 degrees & Vertical:120 degrees ;Elegant Outline and Easy Installation.4G Sim Based PTZ IP Security Camera 3MP with Inbuilt Mic for 2 Way Communication.Any 4G/3G SIM card supported � 128 GB Micro SD Card Support � Universal to Works with any 3G/4G Network including Jio.IP66 Waterproof, Snow, shine, Temperature, Dust.