Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth it, have to pay return shipping.

I bought 2 of them expecting at least 1 of them to work, but they didn't. Also unfortunate is that I have to pay return shipping in order to get my money back. So $3.38 minus $2.05 for shipping = a bad decision in buying this product. Invest in something with higher quality.