Why do you want a cordless mouse? You realize that cordless mice have the same response times as corded mice right? I know theres a stereotype that cordless mice lag and are slower, but its extremely wrong. Modern game console controllers are all cordless now for a reason.
I disagree. I use both wireless and wired mice and the wired mice DO RESPOND faster. It is very noticeable when I use PhotoShop for both Mac and PC.
It is not stereotype, it is fact.
Also, game controllers don't need to be pixel perfect. They are also wireless because they sell for more and batteries are required (money, money. money).