This is not a duplicate of How to change Bluetooth broadcast device name?
I tried
cd /var/lib/bluetooth
sudo vi F8:A2:D6:F8:E7:E8 config
F8:A2:D6:F8:E7:E8 being my device bluetooth mac and there were a list of mac addresses
one of which was my headphones and changed the info file's name from JBL T460BT to friday june
and sudo service bluetooth restart for a brief amount of time when not connected the name remains fridaySound when I reconnect it changes back to JBL T460BT
