Logitech Wireless Marathon Mouse M705 With 3-year Battery Life (Certified Refurbished) This Certified Refurbished product is tested and certified by the manufacturer or by a third-party refurbisher to look & work like new, with limited to no signs of wear. The refurbishing process includes functionality testing, inspection, reconditioning and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty & may arrive in a generic white or brown box.Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon. Compatible with Windows XP, Windows Vista, Windows 7, Mac OS X 10.4 or later Hyper-fast scrolling lets you fly through long documents and Web pages The sculpted, right-hand shape guides your hand to a naturally comfortable position Logitech Marathon Mouse M705 uses less than half the power of comparable wireless mice