Amazon B00X4WHP5E Echo is a hands-free speaker you control with your voice. Echo connects to the Alexa Voice Service to play music, provide information, news, sports scores, weather, and more instantly. All you have to do is ask.
Echo has seven microphones and beam forming technology so it can hear you from across the room even while music is playing. Echo is also an expertly tuned speaker that can fill any room with 360 immersive sound. When you want to use Echo, just say the wake word "Alexa" and Echo responds instantly. If you have more than one Echo or Echo Dot, you can set a different wake word for each you can pick "Amazon", "Alexa" or "Echo" as the wake word.