Thanks for reaching out. I am sorry to hear that you are concerned of the authenticity of your device. I would love to assist you with this.
Can you please provide us with some images of your headphones?
Can you also attempt to perform a software update of your headphones. This can be done by connecting your headphones to as computer via USB and visiting btu.bose.com which will provide you with full instructions on how to proceed.
If your headphones are able to perform a software update, this would indicate that these are genuine.