Immersive JBL sound with the Google Assistant The JBL Link 300 is a voice-activated speaker with Wi-Fi and Bluetooth® enabled that delivers incredible room-filling sound from a compact design. It has the Google Assistant built-in. It’s your own personal Google. Always ready to help. You can ask it questions. And tell it to do things. The more you use it, the more useful it gets. Just start with “Ok Google” – a simple voice request triggers your JBL Link 300 to play music, podcasts or radio from services like Google Play Music, Spotify, Pandora and more. To amplify your party, speakers with Chromecast built-in can be grouped together to enjoy the same song in every room.