1.adopting high performance ARM9,DSP dual processor core and hardware speedup engine embededded video chipset,optimized H.264 Baseline Profile@Level 2.2 compression format,high resolution image transmission on the narrow bandwidth, D1 resolution realtime hardware coding. Completely new high strength Aluminum Alloy housing,constant temprature circulation designing,IP66 protection standard ,intelligently turning speed,turning speed of 0.5degree/S-280degree/S horizontally and 0.5degree/S-180degree/S pitching,180degreeauto flip, 360degree continuous rotation, 128 preset points , power-off memory,Built-in surge and lightning protection. 2. 1/4"sony EXview HAD CCD,440000 pixels,480TVL,18xoptical zoom,12xdigital zoom, minimum illumination:0.001lux(high resolution,imported mechanism:SONY FCB-EX480CP)