A Bluetooth range result must state the source device, implemented radio/firmware, codec/profile, orientation, environment, obstacles, interference, success criterion and test path. Line-of-sight and indoor results are not interchangeable.
Two separate scenarios
Line of sight
Open path with documented orientation, height and interference. Useful for controlled comparison, not an indoor promise.
Indoor path
Document walls, materials, doors, people, nearby networks and source-device location.
Reconnect behavior
Record disconnection, recovery, pairing memory, time to reconnect and user action.
Success criterion
Define what counts as success: continuous playback, permitted dropouts, control response, call behavior or another application-specific requirement. Record the first failure and repeat the path in both directions where relevant.