2.4 G Hz Wireless Technology 2.4 G Hz wireless technology allows for efficient workflow & eases the burden of tangled wires. Portable Nano Receiver The nano receiver is so tiny that you can keep it plugged in to your notebook even when you are on the move. High-precision Laser With high-precision laser, it is not only able to work on various surfaces but also has accurate tracking ability. Super Mini Size Easy to carry on! NBR Rubber High quality side rubber ensures a non-slip grip. Adjustable DPI Button The DPI switch means that you can change the sensitivity (1600 or 800 DPI ) easily.