Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping chargesLearn more about free returns.To view this video download Flash PlayerFree returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping chargesLearn more about free returns.Echo Sub delivers down-firing, 100W deep bass sound through a 6" woofer.Pair with one Echo device to enjoy dynamic music that fills the room.Pair with two of the same Echo devices for rich left/right stereo sound.Simple to set up and use—just plug in, open the Alexa app, and wirelessly connect to your Echo device(s) to control music with your voice.Your deviceDetailsCompareQuestionsReviewsSmart LightingSecurity CamerasPlugs and outletsVacuumsSmart locksWifi and NetworkingHome EntertainmentSort reviews by Top reviews Most recent Top reviews