No worries Chris, thanks for clarifying that for us!
What you are hearing is not the nickname of the headphones in the voice prompt, it's telling you the name of the device it has connected to. So when you connect to your iPhone, it will announce the name of the iPhone it has connected to. If you were to connect to another Bluetooth device, they would announce the name of that device instead.
I hope this helps clear this up for you!
Jun 30, 2020
Ok thank you that makes sense. My iPhone is named 'Chris iPhone 8+' and it is announced as 'Chris iPhone e'
Since its only the one device I'm happy to live with it.
Thanks for your time