1, IP network camera 2, working with access control system FeaturesSystem securitySupports there-level account, password, user multi-level authority management DDNS (free)Built in free DDNS system, like http://demo.easyn.hk, 'demo' is serial code IE client (free)No need to install software, IE monitor &management Super-Client (free)1,4,9,16,25,36,64-channel, no user limited, centralized monitor, ...