Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ordered two and only one worked

I was very happy to find a headset with a 3.5MM plug. Of the two that I ordered, only one worked, however. Also, the one that does work does not have great output. People often say they can barely hear me and I end up taking it off. I have not yet contacted the seller about it so cannot comment on responsiveness.