Ending today, Perixx USA via Newegg offers its Perixx Dual-Mode Wired / Wireless Gaming Mouse, model no. MX-2200, for $26.99 with free shipping. That's the lowest total price we could find by $5. It features on-the-fly DPI switching with three levels (up to 2,000 DPI), four programmable buttons, dual IR and optical sensor switch, and the ability to operate as a wired mouse via USB cable or wirelessly via the charging stand, which doubles as a receiver.