This is the one that I have had for about a year and I am very pleased with it. Good definition, built in microphone and not too expensive. Will sit on top of a laptop or on an LCD monitor (which is where I use it). I have only used it for Skype and it works perfectly with their auto sound and vision detection. On our frequent Skype calls to the USA we sit 2 to 3 feet from the camera and we speak at normal levels, our daughter has no problem in seeing or listening to us at her end. I would highly recommend it.