One concern I do have is that there is no mention of a warranty anywhere. The two tracks dont align that well so the saw can get hung up; I had to use a file to hone down the edges and profile where the two segments meet. I cannot return them because we missed the return window - because we had an unexpected death in the family immediately following the performance. :) The ears are padded and the headband is padded. That problem also means some screws require a lot of torque to get the screw to tighten up all the way. I thought I could do a setup like "if tiled product more than 10 meters away from phone, notify phone", or the other way around. Ogni prodotto di questo marchio si contraddistingue per qualità. However, this book is much more than a bike across America story. Ive checked and my drivers were completely up to date. I was introduced to Liquid IV by a friend on Facebook and was hooked ever since.