... microphoneElectret Condenser MicrophoneSimultaneous viewers16AuthenticationID/Password, Admin/User (Up to 64)Network protocols TCP, UDP, IP, ARP, ICMP, DHCP, ... , stand, AC adapter UK/EU/US, setup CD & guide, network cablePC system minimum requirements Operating systemWindows XP, Vista, ... , manufacture and market of security cameras, IP network cameras and other surveillance products which are commonly ...