Logitech K350 2.4GHz USB 102-Key Wireless Multimedia Wave Computer Keyboard (Certified Refurbished) This Certified Refurbished product is tested & certified by logitech to look and work like-new. The product includes all original accessories, and is backed by a 90 day warranty Curved profile has a familiar shape and consistently sized keys, so you can type with comfort and confidence Up to 33-feet / 10 m wireless range 102-key layout Adjustable keyboard height with Programmable F-keys