ELP Mini Usb Cameras with Case for House Security with Face Detection Function. Easy installation, Plug and Play Only plugging and camera into computer USB port and running the software can make video display and recording work. No drive installation is required. Easy and user-friendly operation  we provide easy-operated software for display and recording, user-friendly playback. Cost-effective  User dont need any DVR or DVR card. Only a few USB cameras and a computer can make a surveillance system to keep your house security. Special intelligent video analysis triggering alarm  supporting face detection, motion detection, missing/suspicious object detection. Once any kind of detection is executed, system will trigger alarm, including buzzer alarm, capture image, recording, send SMS or email etc. Can also insert inside all kind of device for video surveillance and face detection