I saw those wedges. I can see where that would be comfortable. The guy said a charge lasts up to 4 months. Even if it's just two that's pretty good.It feels more natural than my old one , it's easier on my wrist . It comes with two bases and it pivots so it has two angles , three including flat like my old one , It can run as a wired unit with the usb cable while the battery is charging , my old one couldn't do that .