A4tech KK-3330 USB Multimedia Keyboard Mouse Combo Black features High-elasticity silicon membrane for fresh and comfort typing experience, FN Hot Keys for Easy to access to 12 multimedia & internet functions and the drain holes are designed to prevent the keyboard from liquid spill off. It has Laser Inscribed Keys, Ensure you will never loose key identity and Extreme quality offer over 5 million clicks guaranteed. Besides 1200 DPI Guaranteed smooth and accurate tracking anywhere, even on furry textiles. Throw away your mouse pad! It also has 8 gestures to perform selectable hotkey commands, 4-way Wheel for smart horizontal & vertical scrolling and its silent clicks Keeps you focused on the task at hand and eliminates worry of bothering others around you.