What is the probability of an error for a serial protocol via bluetooth?

Question

Bluetooth

Com port over bluetooth.
What is the probability of transmission failure?
The printer has no integrity controls.
Bytes are simply sent.
When data is corrupted. A piece of data instead of a picture is printed as garbage.

I want to understand how often this theoretically should or should not happen, provided that
another device nearby plays music on a bluetooth speaker.

Answer 1

No distortion should occur, since the checksum is already checked at the L2CAP protocol level, on the basis of which RFCOMM works