Designed around voice recognition, Amazon Echo is hands-free and always on. With seven microphones and beam-forming technology, Echo can hear from across the room, even while music is playing. It is also an expertly tuned speaker that can fill any room with immersive sound. Echo connects to Alexa, a cloud-based voice service, to provide information, answer questions, play music, read the news and check sports scores or the weather. All you have to do is ask. Echo begins working as soon as it detects the wake word. Alexa or Amazon can be picked as the wake word.