The Echo Auto offers a sensitive microphone array with 6 microphones that is always on, always listening for your Alexa commands so you can access Alexa functions hands free while driving, using the Alexa app on your phone. The Echo Auto works well inside a vehicle when driving, can hear you speak over the audio that is playing. The Echo Auto is only for someone who is already invested in using the Amazon Alexa app on their phone. If you have Amazon Echo units set up at home you can even drop in, send an audio message to those who are at home.