Cast music to your favorite speakers or receivers with these Google Chromecast Audio devices. Compatibility with most Android, iOS, Windows, Mac and Chrome machines lets you control your music via the Google Chrome browser, apps and Wi-Fi. A short 3.5mm cable connects this unit to the aux input on a hi-fi system, old boom box or portable speaker. These Google Chromecast Audio devices transform ordinary audio gadgets into voice-operated units when combined with Google Home.