Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Whining/Buzzing first time out of the box

As soon as I plugged this speaker in, it started buzzing. I didn't even attach an iPod to it yet. The buzzing is loud and annoying and gets more high pitched when you do plug the iPod in. Sending this back to Amazon for a refund. I can only imagine that if some units do this right away out of the box then the construction of these things is flimsy and I wouldn't trust a replacement to last long even if it worked at first! Frustrating, as I really like the size and look of these speakers and the sound minus the whining/buzzing sound seemed pretty decent for my purposes.