- Check the Bose logo on the outside of the ear cups – if they aren't identical and exactly like how Bose logo looks like, you have counterfeit Bose.
- Serial numbers are tricky – they may be able to get the product registered, but that doesn't mean they are genuine. You can always contact Bose customer support and request a verification.
- The hologram inside the battery compartment for original Bose is much different from fake ones. I don't have a handy picture, but you can distinguish a fake from genuine with this with 100% confidence
Black – real (used a little bit)
White – fake (new ones)