Sometimes the wrong device answers me. I want the device closest to me to respond. This issue mostly seems to happen between tablets.
Thanks for your question!
Alexa should respond from the device that’s closest to you, although unfortunately that doesn’t always work, especially while you’re moving.
One idea might be to use a different wake word – for instance, use “Computer” for your Echo Flex – this way that will be the only device that responds.
Hope that helps you a bit!