Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: These Wireless Headphones were Terrible!

I purchased two of these to replace two old ones I had. I thought I'd upgrade with modern headphones. It was a big mistake. These were really bad. There was static and background noise. When I turned my head, the signal was lost. I tried without success to make them work. Further, they didn't fit well. The ear pieces are flat and press on the ear, rather than cupping or enclosing the ear. There is uncomfortable pressure on the ear and if you bend over, they slip off. I went back to using my old headphones that work perfectly. They are much better than these, even though they are approximately 10 years old and were inexpensive. I was, however, impressed with Amazon by the way they handled these returns. They make returns quite easy.