Conical Burr Coffee Grinder A Good, Quiet, Portable, Conical Burr Grinder For Coffee?

A good, quiet, portable, conical burr grinder for coffee? - conical burr coffee grinder

I need a coffee grinder that I drive to work. It is necessary to be quiet, not portable and should interfere with it, because you can not escape. I will use up to 3 cups of coffee at a time. I'm going to a French is particularly important for the brewery. Conical Burr grinders I have heard is the right way. The recommendations would be appreciated!
Thank you.