Logitech Wireless All-In-One Keyboard TK820 with Built-In Touchpad (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com All-in-one keyboard with built-in touchpad: Type and swipe on one device for effortless computer control and navigation Large touch surface: Point, zoom and perform Windows 8 gestures comfortably and smoothly (also works with Windows 7) Sleek, space-saving design: Ultra-slim, cable-free design reduces clutter on your desk Perfect Stroke and Incurve keys: Experience fluid, comfortable typing with Logitech's advanced key technology