Thumb Score: +32 Best Buy.com has Logitech Performance MX Wireless Mouse (910-001105) on sale for $39.99. Shipping is free. Thanks Discombobulated IncludesLogitech Performance MX Wireless Mouse USB Receiver Receive Extension Cable microUSB Charging Cable AC Power Charging System Pouch Deal Editor's Notes & Price Research: This MX performance wireless laser mouse features Darkfield Laser tracking w/ four programmable thumb buttons for quick customizable commands/adjustments.