<ul><li>Google's Chromecast was first released in 2013 and had a more sophisticated version in 2015.</li><li>The second-generation Chromecast from 2015 had a simple dongle with HDMI & USB connectors.</li><li>The hardware of the second-generation Chromecast supported Bluetooth but it was enabled later.</li><li>Although the Chromecast line was discontinued, the existing dongles still work and the protocol is supported by Google TV and other smart appliances.</li></ul>

A Look Back at Google’s 2015 Chromecast

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