Main features: Processor: built-in 32bit RISC processor Operation system: built-in Linux Built-in Sony HQ1 CCD sensor Built-in POE function 520 TVL IR coverage: 30 to 50m Specifications: Compression: H264, PAL/NTSC for option Resolution: QCIF, CIF, 2CIF, DCIF, 4CIF and frames for option Transmission rate: 32k to 8Mbps Excellent domination for code technology: dual-stream technology, frame rate, picture quality, speed up network transmission Support multi-area network, sensitive motion detection, time, triggering, message alarm (for option) MP3 compression, bi-directional language, watermark technology Support local video record (via Microsoft media player directly) Private mask function Support snapshot Support POE function