Work efficiently with this black USB mouse and keyboard. The quiet touch keys make this keyboard ideal for office settings or other populated areas, while the Advanced Encryption Standard ensures that whatever you type is encrypted for added security. With a wireless design, this keyboard and mouse prevent you from having to deal with tangled cords and let you use them up to 30 feet away, providing convenience. Customizable buttons let you execute frequently used programs and functions to boost productivity. This Microsoft wireless Desktop 900 mouse and keyboard combo features a full-size ambidextrous mouse for comfort, regardless of which hand you use.