1.China made camera module 2.Cheap price 3.Superb quality 4.short lead ... machine, waterproof and dustproof IP66 level5) Integrated Web Server, can monitor, control and setup easily by web pages from far away6 ... compressG.711, two way audioAudio Interface1x3.5mm linear audio input, 1x3.5mm linear audio outputNetworkProtocolTCP/IP,HTTP,ARP,RARP,ICMP,DHCP,DNS ...