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).
Follow steps to download Alexa app and echo dot setup. You will need an Amazon to account for Alexa login and Alexa app setup. If you have bought a new Amazon Echo dot and don't know how to set up it, so here are the simple guides to use Alexa app and Alexa setup. Amazon Echo dot is a very popular device to control home gadgets. Why you need Alexa app for Echo? It is important to use the Echo device or echo app.
Click on Alexa.amazon.com