Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A good product, with the exception:

The Vocopro is an interesting product and attractive but the microphone just does not have enough volume to sing with. I contacted the company and sent the item back to them and they sent me another machine but it has the same problem with the microphone not having much volume.I was disappointed. One can not really sing with out enough volume on the microphone.