Crafted for your hand Enjoy extra comfort for your right hand through curved grips made of soft rubber. 18-month battery life Go longer between battery changes thanks to our energy efficient engineering. Plus, M280 automatically puts itself to sleep when you’re not using it. Smooth and precise tracking Get ultra precision and responsiveness with Logitech Advanced Optical Tracking. Plug-and-forget Nano receiver Plug it once and forget it. Nano receiver gives you a convenient and reliable wireless connectivity.