https://www.cnbc.com/2019/04/03/amazon-echo-lights-what-they-mean.html

You may have noticed that your Amazon Echo sometimes has a flashing ring around it. The light might glow yellow, red, orange or green. All of these lights mean something, and sometimes they can be annoying if you have an Echo in your room and you want to sleep while the light is flashing.

Here's a quick guide to what each of those lights on your Echo mean, and how to turn them off.