Suggested Retail:$40. Microsoft Desktop 900 Wireless Keyboard & Mouse, Black. 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.. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. PAID DELIVERY AND 7 DAY ALTERNATE PICK-UP ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.