Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Don't Buy These!

I bought these for jogging because I wanted something that was sweat resistant, but after only a few steps, they fell out of my ears. I had to run back to my house to switch back my ipod headphones. Honestly, it doesn't matter how they sound because they are unusable. I wish I hadn't wasted my money. Please don't make the same mistake!