"I have a whole stack of wired Sensei’s and I have been extremely happy with their comfort and performance over the years. I was worried that there wasn’t room to improve and that a new model might bring its own downsides. Thankfully, I was wrong. The Sensei Wireless is a great mouse. Paired up with the H Wireless I am basically wire free."
Garfi3ld - LanOC.
SteelSeries Sensei Wireless mouse review by LanOC - Introduction & Conclusion.