when i bought the cameras with a receiver from this company, i did not see a good use from these products until i bought the same brand-PCE Digital Video REcorder DVR and Remote internet Access Card with Windows Driver and Software. At first, we were confused, but when i contacted the company and got a very good customer service, we made the products work. For most people, we are not sure what to get. When i recommend these products to my friend, he was not sure how to install them. It will be great that the products come with clear instructions and what people should get for the whole system.