Good for those people that have just bought a new notebook.
Features & Benefits
# Comfortable and compact cordless mouse for notebooks with snap-on receiver.
# Mini-receiver snaps onto the mouse and turns it off.
# More responsive high-definition optical technology.
# Up to 6 months battery life with low-battery indicator.
# Side-to-side scrolling plus zoom.
# USB connection; Windows® XP, Windows Vista or Mac OS X 10.3.9+.
# Documentation in English.
# 3-year guarantee.
# Full product support.
Built for comfort at home or on the road, the Logitech® V220 Cordless Optical Mouse for Notebooks features an ergonomic design and soft rubber grips. The mini-receiver snaps into the mouse for easy transport. Enjoy up to 6 months of battery lifeeven longer with automatic on/off. The convenient battery indicator light warns you when batteries are low. 1000 dpi high-definition optical technology makes the V220 Cordless Optical Mouse two and a half times more responsive than ordinary optical mice. Also features side-to-side scrolling plus zoom. USB connection, for PC and Mac. 3-year guarantee and full product support.
review here http://www.dvhardware.net/review114_logitech_v220.html