https://blog.wongcw.com/2019/01/29/jaybird%e6%8e%a8%e8%b1%86%e5%bc%8f%e7%84%a1%e7%b7%9a%e9%81%8b%e5%8b%95%e8%80%b3%e5%a1%9e%e6%96%b0%e5%93%81run-xt-%e5%ae%8c%e6%95%b4ipx7%e9%98%b2%e6%b0%b4/