Logitech G603 Lightspeed Wireless Gaming Mouse : Logitech G603/G613 wireless gaming mouse and keyboard review: Is it possible to game without wires? - HardwareZone.com.sg
Amazon.com: Logitech G603 LIGHTSPEED Wireless Gaming Mouse, HERO 12K Sensor, 12,000 DPI, Lightweight, 6 Programmable Buttons, 500h Battery Life, On-Board Memory, PC/Mac - Black : Video Games
Logitech G603 Lightspeed Wireless Gaming Mouse, Hero Sensor, 12000 max DPI, Connect to Multiple devices, 500 hours on 2AA Battery, Six Programmable Buttons, Lightspeed USB Receiver, USB Receiver extended cable, Zero smoothing/acceleration/filtering