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).
In case any problem is encountered in the Alexa setup or echo dot setup, one needs to press and hold the Bluetooth/Wi-Fi button for five seconds until one hears a tone.
The Amazon Echo Dot has to be reset o factory settings and setting has to be done all over again.
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