*Built-in speaker and MIC, 2 way intercom
*Support ONVIF, RTSP protocol
*720P/VGA/QVGA triple stream
*Support 4CH real-time view on mobile phone APP
*Built-in PIR infrared sensor alarm, detect the human body, can immediately push the picture to Mobile APP
*Built-in backup battery, Compatible with USB powered and battery powered
*Support up to 64G Micro SD card, loop recording
*Support motion detection alarm, video recording
*Support dynamic IP, WIFI, IEEE 802.11 b/g/n
*Support mobile phone viewing (iOS, Andriod OS)