The Microsoft Wireless Comfort Keyboard 4000 is an ergonomic keyboard in a sleek black and silver color combination. Its compact size makes it easy to use and store, with dimensions of 2.5 inches in height, 19.2 inches in length, and 11.0 inches in width. This wireless keyboard features a QWERTY layout, English language settings, and a comfortable design for extended use. Made of durable plastic, it offers a convenient and stylish option for typing on your computer or other devices.Item is tested and working. In great condition, missing the battery cover plate.