... M136FeaturesSystem securitySupports there-level account, password, user authority managementDDNS(free)Free DDNS bounded i.e., no need dyndns,like http:// ... port forwad, save bandwidth, cell phone video monitormutile software(free)1,4,9,16,25,36, 64-channel mutile ... message alarm, ftp upload, preset, GPIOetc. SystemSystem requirementMicrosoft Win98 SE/ME/2000/XP, Vista,win7, Internet Explorer 5.0, NET4 ...