This Frisby FM-45WM mouse is a great value. It has CPI button to chose between 800 & 1600 DPI. It delivers Precision Optical Tracking with that function. The red color finish on the surface of the mouse is PVC polished. It has also very nice looking so it will suit next to your desktop or laptop. The 2.4GHz RF wireless technology provides the most stable wireless connection available. The system has a 25 ft range (8m) and Auto match working channel. Hassle Free Plug and Play Installation for any PC desktop, laptop, tablet PC or MAC . No driver required, just Plug the micro receiver into the USB port and your computer will recognize the new hardware and install it automatically, it is ready to use in seconds. Compatible with any Windows operating system and MAC OS 8.6 or higher. The power saving design reduces power consumption during inactivity. Any movement, click or keystroke restores normal function. The device operates on 2 AAA battery. Rolling the well for the easiest scrolling application. The optical tracking sensor accurately scans the surface of the desktop many times. Every second for smooth and fast tracking on the computer scree. Super small and inconspicuous receiver, you can plug it into a USB port and forget about it. Plus, you can say goodbye to worries about broken or lost receiver.