The Amazon Echo [$199 ($99 for Prime Members)] is a speaker with a voice-control system. It is designed around your voice. Always on, Echo begins working as soon as it detects your “wake word”. Under Echo’s light ring, there is an array of seven microphones. The sensors use beam-forming technology to hear you from any direction. When Echo detects your wake word, it lights up and streams audio to the cloud, where it leverages the power of Amazon Web Services to recognize and respond to your request. Just ask it for information, music, news, weather, and more.

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