Amazon Echo Voice assistant Grey (2nd Gen). Amazon Echo is a hands-free speaker you control with your voice. The Amazon Echo connects to the Alexa Voice Service to makes calls send & receive text messages provide information & much more. All you have to do is ask. Amazon Echo has an expertly tuned speaker that can fill any room with great sound. It has seven microphones & beam-forming technology so it can hear you from anywhere in the room. When using Echo simply say the wake word a€œ Alexaa€ & the Echo lights up & responds to your request.