https://twitter.com/shimazakikazumi/statuses/688974893665234944

http://deli-hell-me.tumblr.com/post/137549149293/

https://twitter.com/via_nirone7/status/689231482607374336

http://hkdmz.tumblr.com/post/137561350605/

http://www.itmedia.co.jp/pcuser/articles/1601/18/news115.html

http://gigazine.net/news/20160119-headphone-plug-from-19th/

http://cgworld.jp/interview/1512-harashima-2.html