Firstly, Download Alexa App from the play store of your mobile device. The app can also be accessible through your Wi-Fi connection by going to alexa.amazon.com on one of the following browsers: Safari, Chrome, Firefox, Microsoft Edge, or Internet Explorer (10 or higher).
There are several activities that can be performed through this device connected to the Alexa App.
This app is available on phones and tablets that have:
Fire OS 3.0 or higher
Turn on Amazon Echo Dot:
Position the Amazon Echo Dot in a central region with at least 20 centimeters away from any walls or windows.
Now open the Alexa app and choose your Amazon Echo device from the list - Echo Show, Echo Plus, Echo Dot, Echo, etc. Now connect Alexa to WiFi and your Echo Dot Setup will be completed.