High Definition IP network.Cameras are the next-generation phase of CCTV camera development. Very high Resolution images are produced, The most popular are 1.3MP, , 2MP, 4MP, 1080p and the fantastic 4K. No need for separate coax and power leads, IP cameras are connected using standard CAT5 network cable and most are powered through the recorders or separate network POE routers. IP cameras are accessed across your standard etherent network and they have a built-in web server interface to set parameters and view footage. A network video recorder,(NVR), is used to record the CCTV footage. Many IP cameras have two way audio capabilities.