... to the speaker, and it supports two-way intercom function.3) It was equipped with pan/tilt function ... rate30fpsBit rate128kbps ~ 5MbpsImage RotationMirror /FlipAudio CompressionADPCMNetworkBasic ProtocolTCP/IP,UDP/IP,HTTP,SMTP,FTP,DHCP,DDNS,UPNP,NTP,PPPOEOther Protocol802 ... or Compatible Browser, Firefox,Safari etc.Application SoftwareIPCMonitor.exe IP CCTV Camera Package Includes1) 1.5m cable2) CD ...