I have been trying to get my wireles cameras to work now for quite some time. All I can tell you is that unless you get lucky, They are garbage! Don't buy them. I have tried every suggestion written under trouble shooting and still cannot get good reception on more than one camera at the same time. And even then it has to be within 10 feet of the reciever. Everything interferes with them. If you have 2.4Ghz phones, a wireless router, the receiver too close to your computer or even have noise on the power lines just forget it. The list goes on and on. If you have one camera within 6 or 10 feet of the receiver and they both remain motionless it may work. Oh yeah, I read something just yesterday that stated if your house has the kind of insulation with foil on it, it may interfere also. It's a joke.Gimme a break. Who has the time to go through all of this nonsense. They don't tell you this before you buy them however. You can't get some one to send you an example of good picture quality is because it's like Bigfoot, even though you want to believe, it just doesn't exist.