Instruct: Classify an Amazon review as either positive or negative.
Query: Durable, portable and decent sound quality

We've had this white noise maker for almost 2 years now which is impressive considering the price. It is wonderful to travel with -- it's been all over the country with us. My only complaint is that now that we have a second child, I wish we could increase the volume just a little bit more. Over all though, we've been very satisfied with this product!