The DCS-5300G allows you to see and hear what is going on an office/ room / area from anywhere in the World you have a connection to the internet. What you do is hook this up, get an internet address (no cost), and then what the camera sees and hears is on the computer in front of you. And you have the ability to move the direction the camera is pointing from the remote location. I bought it to keep track of my office when I was away, but have just not used it like I planned. It is in perfect condition and I have the original box and all the original contents and packing.