With its ergonomically shaped & soft rubber coating grips & the tiny nano-receiver it offers excellent & wireless comfort The Nano-receiver is so small that it can always remain plugged in the laptop & the mouse is always ready for use. Logitech's advanced 2.4 GHz wireless technology ensures a powerful, reliable connection with virtually no delays & failures. The intelligent battery management allows several months of operation, & offers more convenience. A LED display for the battery state prevents