... distance; 802.11a/b/g/n Wifi moudle ,2000M distance IP Camera works demo link:http://gotcha.dyndns.biz:145 guest/guestSpecification ... linear channelAudio Input (callback)1 channel, microphone.Supported protocolsTCP, UDP, IP, HTTP, SMTP, DNS,ARP, ICMP, POP3, NTP, IPsec, UpnP,RTP ... /ME/2000/XP/2003Microsoft Internet Explorer 5.x or highe IP Security Camera