They were just a little confusing but at the end of the day it?s not rocket science and easy to assemble. So I did some research on the threat of hearing loss to motorcyclists from wind noise and found that it indeed poses a very serious threat of permanent hearing loss to motorcyclists traveling at freeway speeds for any significant, sustained period of time. Cost is too high, especially after shipping from third party Amazon seller. Muy sencillo y caro I have 3 kids and Keens stand the test of time. High enough for coats and dresses, which is one of things I like about. Living in Florida, I wear Flip Flops 90% of my life. THEN i ordered the wireless version and returned the wired one. The seller contacted me and was very sorry to hear that I was not happy. The hardest part of the installation is contacting Verizon, and I recommend doing this installation in the daytime because of the need to contact Verizon.