Razer (http://arstechnica.com/gadgets/2012/11/why-the-hell-does-this-mouse-need-to-connect-to-the-internet/ http://arstechnica.com/gadgets/2012/11/why-the-hell-

Razer (http://arstechnica.com/gadgets/2012/11/why-the-hell-does-this-mouse-need-to-connect-to-the-internet/ http://arstechnica.com/gadgets/2012/11/why-the-hell-does-thi...) I know Logitech's software also makes network calls but I never bothered looking what it is, I just block everything. At least it doesn't ask for a login, it can save locally or in the on-board memory.