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).
Guaranteed! working steps find here for Alexa app and Amazon Echo dot setup. Download Alexa app and Alexa app setup. Amazon Alexa app helps to connect with your friends and family via Alexa calling or messaging.
Amazon launched Echo devices - Echo, Echo dot, Echo plus, echo sub, echo show 5, Echo app, etc. Get Alexa app by download it from Google play store and Install Alexa app for Echo in your device or get Alexa app for Android, MAC, tablet, etc.
Alexa setup by Alexa login and go to Alexa app setting, just enter your information in it. Set a wake work, it may Alexa, Amazon, computer, etc. Now, its time for echo setup, echo dot setup, Amazon echo dot, etc.