Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a joke

I rarely am so displeased with a product that I'll go out of my way to write a negative review of it. In this case I'm that displeased. The noise canceling technology of these headphones consist of "white noise" generated in the headphone speakers, intended to drown out other sounds. Great idea, but if I want to listed to the hiss of white noise I'll hold a seashell up to my ear and tell myself I can hear the ocean. Replacing one type of noise with another is not helpful.