Gigabyte GM-M7800E Optical Wireless Mouse Black

2.4GHz wireless Technology - 2.4GHz wireless provides more freedom. Let your work more efficient.  Ultra Nano Receiver - Too Slim to Remember High-precision Laser - Able to work on virtually any surface with accurate tracking On-the-fly 800 & 1600 DPI Switching - Press middle & right buttons together for five seconds to shift Portable Nano Receiver - The nano receiver is so tiny that you can keep it plugged into your notebook even when you are on the move High Quality “Matt Black” Coating - The same colour as Stealth Aircraft F22. Absorb all the light and reflect nothing.

• Interface :  USB 
• Tracking System :  Laser 
• Frequency :  2.4GHz RF 
• Resolution :  800/1600 DPI Adjustable 
• Working Distance :  6~8M (depend on noise condition) 
• ID connection time :  Plug and Play! Auto-Link ID!