Kin was a short-lived mobile phone line from Microsoft designed for users of social networking. Microsoft described the phones' target demographic as men and women between ages 15 and 30. It was manufactured by Sharp Corporation and sold through Verizon Wireless.Microsoft invested two years and about US$1 billion developing the Kin platform, beginning with their acquisition of Danger Incorporated. The Kin was based on Windows CE.The Kin ONE and TWO went on the market in May 2010.