Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Underwhelming & Returned

I was looking for a pair of speakers for use with my laptop. The sound quality wasn't nearly as good as what I expected based upon other reviews here, but what really frustrated me was the loud buzz that emanated from these speakers whenever they were powered on. No matter where I plugged them in or what was plugged into them they buzzed loudly.I'm wondering if the problem isn't with interference from the integrated power adapter since I've never had this problem with other PC speakers that do have an external wall-wart style adapter.