constant speed Pan-tilt IP dome camera Features: - MPEG-4 image compression - ADPCM Audio compression - Built-in Web server, IE client support Max. 30fps image compression - Max. 30fps image transmission - D1, CIF, FIELD, QCIF Resolution - Support DDNS - Support Motion detection and watermark - Support Watchdog - 22X Optical zoom, auto focus Lens - TCP/IP, ARP, RARP, ICMP, DHCP, FTP, HTTP, and SMTP protocol support - Remote snap shot and video recording - Self-contained FTP server & E-mail sending function - Free multi-screen management software. Applicable indoor-outdoor installation - Applicable in schools, banks, communications, posts and telecommunications, electric power system, video conference, high-class hotels, multinational enterprises, chain stores, home security etc.