Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pleaseee Don't buy these.

I bought these headphones for $50 dollars but please read this review and don't waste your money.First of all ask yourself why do you need noise cancellation. This is definately because you don't want to hear outside noise when you are travelling and here is the problem with these. These are great sounding ear buds if you are sitting idle but once the wires start to move (e.g. if you are travelling) then you will clearly hear distortion in your ear. Plus you can even hear the wire move around and I swear that you won't be able to wear them for more than five minutes. ( The noise of wire moving nauseated me and made me vomit)Do yourself a favour and don't buy these.If you want noise cancellation go for full size noise cancellation headphones or at least don't buy these ones. They are useless.