https://qooah.com/2012/06/03/samsung-%e6%94%b6%e8%b3%bc-nanoradio%ef%bc%8c%e6%89%8b%e6%a9%9f-wifi-%e5%8a%9f%e8%80%97%e6%88%96%e5%a4%a7%e6%b8%9b/