Logitech Wireless Combo MK620 USB RF Wireless Keyboard and Mouse - 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 Full-size, fully featured keyboard One-touch media controls - mute your computer, adjust volume, skip to the next song or pause a video instantly without using your mouse Right-handed comfort mouse with hyper-fast scrolling Advanced 2.4 KHz wireless connectivity gives you the reliability of a cord and the convenience of wireless freedom