Professional PTZ Video Conference camera system 360 pan, 210 tilt, 27X optical Zoom,with CVBS(AV),S-Video, RS232C, 422, 485 Bus, Interactive menu, BLC(Backlight Compensation),Auto/Manual Focus,etc, best choice for Videoconferencing system, Recrding system, remote education,enterprise traning,church, justice, etc. outstanding quality while low..