Adopt DAVINCI wafer processing, excellent Video Coder and RTOS Built-in a compression performance MPEG-4 encoder, support D1, CIF, QCIF encoding format Audio compression format use G711 encoding format to save network bandwidth Adopt the pronunciation talkbacks, PTZ control, alarm, user manager Video code rate (40kbps to 4Mbps) can be uninterruptedly adjustable The most advanced network forwarding server technology, easy multi-user access, user password access management Network function: support for TCP/IP protocol, built-in WEB browser support for IE access RS485 control of PTZ, supporting multiple control protocols Real color, high-definition Built-in IR Big lens 30pcs Φ8 good-quality wide-angle high-power infrared light Illumination automatically converted, min. illumination: 0Lux/F1.2 (with IR) 30 to 50M viewing distance Exquisite design and easily adjustable