The purpose of Milo is to make shared adventures better and allow you to go far while staying close. In other words, to communicate with others in your group while having fun together. Milos are easy to group with the push of a button, and volume and mic control are equally simple. Milo keeps you informed about who's in the group, who drops and rejoins, and your battery level.
To learn more, check out our How To videos here: https://www.okmilo.com/en-us/how-to-videos/ and look at our Quick Start Guides, available in 5 languages on our support page: https://www.okmilo.com/en-us/support/
When you first turn on your Milo, you will get a handy tutorial that steps you through all the main functionalities - you can hear that demo again anytime if you do a hard ("factory") reset.