I searched different colors till I found the cheapest. 4) Controls: This was a main reason I purchased-- full controls on both sides. Would have liked it to use both plugs on the wall but the center screw works well and holds the protector well. I bought these for work - Im in a production environment where its usually pretty quiet. The quality has gone out the window on this model. Overall, I would buy again for use in my older cars that I don’t want to spend a lot of money on! They were a little weary after my whole colonoscopy story, but eventually a few of them tried it out. It needs more cushion and a sturdier bottom. Not narrow, not wide. and was told that it is likely due to a manufacturing defect.