Lenovo 78004771 Logitech M310 - Mouse - laser - wireless - 2.4 GHz - USB wireless receiver - silver

The full-size, contoured design with soft rubber grips feels good in either hand - even after long hours of use. So small and unobtrusive, you can plug it into a USB port and forget about it. Plus, you can say goodbye to worries about lost receivers. You can go for months without battery hassles. An on/off switch and smart sleep mode extend battery life, while an indicator light eliminates surprises.