The Lenovo Wireless Mouse N3903 offers exceptional comfort and cordless convenience. It's ergonomic design provides comfort while allowing users the ability to operate with either hand. The integrated on/off button on the bottom of the mouse, allows you to conserve batteries (2 AAA batteries included). Simply plug in the tiny USB nano-receiver and forget it. Get responsive, smooth cursor control with high-definition optical tracking. This mouse will easily operate on wood, carpet, and other difficult surfaces.

• Metal 3D island&coffee color match ideapad NB style
• Wireless mice, small size，comfortable & portable
• Ergonomic design, good touch feeling and quick response
• Mini dongle fitting in the mouse battery store for ease in travel
• Easy tracking on carpet,wood and some other difficult surfaces
• On/off switch self-sleep function for saving energy
• Strengthen optical system for adapting more kinds of surface