Hello Owl_Eye83,
Thanks for reaching out here in Apple Support Communities. From what we understand you've noticed a unfamiliar device popping up in your Bluetooth list on the iPhone.
Is that correct? There are a few steps you can take to help isolate the issue.
Have you noticed if this occurs in a certain location, or does this happen everywhere while using the device? We ask to help isolate to another potential device nearby in a specific area or potential interference. Also, are there any Bluetooth devices paired with the device? If so, can you test the issue after removing the devices? You can also try toggling Bluetooth settings and restart the device to test. Resetting your network settings can also help isolate. Keep in mind resetting network settings will also reset Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before. Take a look at the details below and keep us updated.
If you can't connect a Bluetooth accessory to your iPhone, iPad, or iPod touch
Resolve Wi-Fi and Bluetooth issues caused by wireless interference
Warm Regards.