This video gives you pointers to check if your Bose SoundLink Mini II (Special Edition) is genuine or a counterfeit.
It's a comparison between original and fake with some sound test

Timestamps
0:00 Introduction
1:34 Comparison
13:41 Me trying to haggle with the Bluetooth Pairing (Optional)
16:44 Sound test

Bose Serial number check: https://support.bose.com/s/bose/produ...