Well, I got screwed up with them. Sent in a technical question and told me in an email I need to replace my signal link. So ordered one, and in the meantime, got the one I had working okay. I canceled the order, they shipped it anyway. I get it appears it was an opened unit, no instructions, no CD, just the unit. Never again. Rather buy from someone off the swap boards if this is what I get as advertised as "new" in the box. Box was mangled up like someone pried it open to remove something. Just a signal link, cord, nothing else. Talk about poor customer service. Sent them and email about it, waiting to hear when they will send me the instructions and CD it is suppose to come with.