Logitech(R) Wireless Mouse M235. The feel-good, reliable mouse that\'ll make you forget the touchpad. From surfing the Web to navigating your Facebook(R) profile and sharing text or links with your friends, everything you do on your laptop is just easier thanks to Logitech(R) Advanced Optical Tracking. Logitech(R) Advanced 2. 4 GHz wireless provides a powerful, reliable connection with virtually no delays or dropouts--all in a tiny nano-receiver you can plug in and forget. A 1-year battery life means fewer hassles. And you can do everything you do on your computer in more comfort and ease thanks to this compact mouse\'s hand-friendly, contoured design with soft rubber grips and a smooth scroll wheel. o Logitech Advanced Optical Tracking o Logitech Advanced 2. 4 GHz wireless connectivity o 1-year battery life o Comfy, contoured design with soft rubber grips and a smooth scroll wheel in a compact size o Plug-and-Forget Nano-receiver o Mouse o Nano-receiver o 1 AA battery (pre-installed) o User documentation o 3-year manufacturer\'s guarantee and full product support