According to iFixIts teardown: <a href="https:&#x2F;&#x2F;www.ifixit.com&#x2F;Teardown&#x2F;Chromecast+2015+Teardown&#x2F;50189" rel="nofollow">https:&#x2F;&#x2F;www.ifixit.com&#x2F;Teardown&#x2F;Chromecast+2015+Teardown&#x2F;501...</a><p>It has a Marvell Avastar 88W8887 chip, which has NFC built in. <a href="http:&#x2F;&#x2F;www.marvell.com&#x2F;wireless&#x2F;88W8887&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.marvell.com&#x2F;wireless&#x2F;88W8887&#x2F;</a> as well as FM Radio.<p>I said this should be used for &quot;Tap and Play&quot;