The HP 400 Quiet Dual Wireless Mouse is best for office workers or students - it's built for everyday productivity. Quiet-click buttons help you stay focused and work without disturbing others, whether you're in a shared office or library. The 2D scroll wheel lets you move vertically and horizontally through spreadsheets, making large Excel files much easier to navigate. With adjustable sensitivity up to 6000 DPI, you can adjust how quickly the cursor responds.Dual wireless connectivity - lets you switch between Bluetooth and the USB receiverUp to 24 months battery lifeMulti-surface tracking