Instruct: Classify Amazon reviews into positive or negative sentiment
Query: They are not working

I just got them yesterday. I usually do not need to compliant since every time I buy something it works. This time I waited 16 hours to charge the batteries and afterwards they never worked. The batteries do not show as being charged and I also got a new set of already charged bateries but still it never worked. I spent 3 hours and I finally realized that this product is not worth the money I spent since it is not going to help me ever to be relaxed. Usually you just plug the headphones and you are ready, but this time the manual of this product is not clear in any of the languages I can read...English and Spanish. Even worst..They are not cheap and now I will have to fix this situation that it does not look really bright.