Echo devices are designed to detect only your chosen wake word (Amazon, Alexa, Computer, or Echo). The device detects wake word by identifying acoustic patterns that match the wake word. Once the word is detected, audio begins streaming to the cloud, including a fraction of a second of audio before the wake word. No audio is stored or sent to the cloud unless the device detects the wake word (or Alexa is activated by pressing a button).
Alexa is the menial helper incorporated with each Amazon Echo. Also, she turns out to be considerably progressively valuable in the event that you include more aptitudes. Alexa can likewise control many savvy home contraptions, for example, lights, indoor regulators, switches, and the sky is the limit from there. So in the event that you've quite recently got an Echo or you're hoping to figure out how to get more from your contraption, read on Alexa app windows.
In a word:
For more information visit here alexa.amazon.com