Using Alexa app echo setup you can setup most of the devices i.e. echo,echo dot,echo plus and echo show here using this app you will be able to connect alexa echo with your phone as well as you can set it up for your smart tv.

Setting Up:

First step is to setup the alexa app right way you need to sign in into your alexa account.

second step is to put your device in pairing mode or setup mode so that you can easily setup your device.

than you can use your phone to give command to your alexa device.

This app allows you to communicate with all smart device you have like ring doorbell or any smart camera.