1. Embedded Linux OS. 2. 1/4 720p progressive CMOS sensor. 3. Video coding main stream: 1280*720 25fps; Sub stream: 640*352 25fps, 320*176 25fps. 4. Picture adjustment: Contrast, brightness, Saturation, flip and mirror are adjustable. 5. Support 5 online visitors simultaneously. 6. Support Onvif protocol. 7. Support 4 independent detection areas (sensitivity 1-100). 8. Audible alarm(Sensitivity 1-100). 9. Sending picture to Email; Uploading picture or video to FTP; Saving picture or video to TF card. 10. Support Windows XP / 7/ 8 / 10; iOS and Android.