Quoted from Neal_W:Fakes abound in consumer products. Recently was in the market for Bose noise canceling headphones, and got steered away from ebay since Bose products are frequently faked. Ordered from Crutchfield with a 6mo no questions asked return policy which worked out well since I found I didn't care for the first model I purchased.
Bose is trash. If you are still in the market for headphones here is a screaming deal on a nice set. https://www.worldwidestereo.com/products/sennheiser-momentum-wireless-bluetooth-over-ear-headphones-with-active-noise-cancellation?sku=163063&cjevent=76fabb34e7f411ea8173004b0a24060b&utm_source=CJ&utm_medium=affiliate&utm_campaign=100134077&utm_content=13359547