This mouse is green With a 4* Clevergreen rating, the YVI+ is made of 83% recycled plastic and arrives in plastic-free packaging so you can work more sustainably than ever. Go the distance An extra-long battery life provides up to 12 months of use. Ready to celebrate you and your mouse�s anniversary? Cut the noise Silent buttons keep the peace and your productivity at an all-time high. Small size, big results A comfortable, compact shape keeps you effective and efficient, and makes the YVI+ a great choice for commutes or travel. Be free An 8m wireless range provides plenty of freedom to get things done no tangles, no knots, no worries. Precision, precision A speed select button enables you to switch between 800 and 1600 DPI, depending on your preferences and the job at hand.