ROCCAT Kone Air Wireless Gaming Mouse
The ROCCAT Kone Air Wireless Gaming Mouse has a 19K DPI optical sensor and titan optical switch that deliver top-tier precision without compromise, all for $24.99, originally $49.99. Product page.

With just 2 x AA batteries, the mouse can get around 800-hours of use, but if you want to keep things light, a single AA battery still offers extended use without the weight. In addition to the Kone ergonomic shape for long term comfort, Easy-Shift[+] technology expands its 9 dedicated buttons into 17 programmable functions. If you’re an Intial D fan, this Toyota AE86 computer mouse should do the trick.

The mouse itself fits very comfortably in my hand. It glides smoothly and I thought it was nice that the feet on the bottom had protective covers on them when it arrived. I’ve played a few games and it’s hard to tell yet how well it works vs past gaming mice but it’s definitely comfortable and I haven’t experienced any double clicking, mis-clicks or weird mouse movements,” said one reviewer.