Logitech Wireless Keyboard K270 with Long-Range - Black (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 resulting product includes all relevant accessories, comes with a minimum 90-day warranty, and may arrive in a generic box. Only sellers who meet a high performance bar may offer Certified Refurbished products on Amazon.com Plug-and-play setup with one tiny receiver that stays in computer and lets to add compatible devices Robust connection with up to 10-meter (33 feet) range Eight hot keys: For instant access to the Internet, e-mail, music volume and more Long-lasting battery life, Works with Windows-based computers