LB1 High Performance New 2.4G Ultra-Silent Wireless Optical Mouse Comfort Click After Click-The mouse fits easily into your palm and provides support for the wrists and fingers - decreasing strain - so that you can work for as long as necessary in the utmost of comfort. Free Yourself from Cords and Hassles-The LB1 High Performance 2.4G Wireless Compact Optical Portable Mouse is compact in size at 3.8 inches by 2.5 inches by 1.5 inches. Its wireless design makes it perfect for traveling or for eliminating clutter on your desk. The plug and play design allows you to form a 2.4G wireless connection with any compatible computer in seconds so there's no need to waste time downloading drivers and installing software. Smart Customizable Design-With just the touch of a button you can change the sensitivity from 800 to 1600 to 2400 DPI. 100% Customer Satisfaction. Fast Same-Day Shipping by 12:00 PM PDT. 30-Day Money Back Guarantee. 12 Months Warranty. Exclusive $100000 Product Protection Plan! Satisfies Government-School-Health care enterprise and Corporate account purchase order requirements.