[jeroenhd]

I own zero Bluetooth audio devices with rename functionality. I don't think it's common at all. Especially in the "cheap, obnoxious Bluetooth speaker" category.

My phone will show me a different name for a "renamed on phone" Bluetooth device, but all other devices in the area won't.

[jim33442]

The cheapo ones probably won't have it. Any brand name will have its own app that will have a rename feature like half the time. Not particularly expensive brands either.