• High Precision and Ease of Control • Laser precision experience smoother cursor control on virtually any surface. • Instant access to toggle between 800 and 1600 cpi resolutions for increased configurability of speeds, precision and accuracy. • Battery life up to 6-month of use, or longer with the convenient use of on/off switch World’s Smallest Nano USB Receiver • It is so tiny that you can plug the nano-receiver into your laptop just once, and forget about it forever. • 2.4GHz Reliable Wireless Connection • 2.4 GHz wireless technology can be up to 10 meter range and provide a reliable connection without any interference. And you will not have any impact on health.