Unknown “iPhone” in my Bluetooth devices

Today I was trTying to connect to my Bluetooth headphones and I noticed an unknown device in my Bluetooth devices on iPhone. The devices was called “iPhone” and had no blue “I” button next to it so I did not have the option to disconnect this device. After turning Bluetooth off and on again the device disappeared and has not yet returned, although it has only been about an hour. I check reddit and followed the advice of disabling Bluetooth access for my apps which were using it, those being Spotify and Sony sound connect. Is there any way I can figure out what this was? And is this cause for concern? Thank you.