Rename Your AirPods
You can change the name of your AirPods. This won't change a lot, but when you choose your AirPods in settings and look at battery life, you can see this name.
There is no need for an app to do this like on some third party headphones. You just need to go into the settings when AirPods are connected to your iPhone.
When you are done just go back to Bluetooth Settings and your AirPods name will be saved.