Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible buzzing sound

We bought this for our toddler, hoping to have a simple monitor that we could use to know when she was awake after nap and in the morning. Unfortunately, the parents' unit buzzes so loudly that it was almost impossible to hear anything that was going on in the room. The monitor has two channels, and the buzzing was the same on both channels. To keep the buzzing at a reasonable level, I had to turn the volume down so much that I couldn't hear anything happening in her room, even with the monitor at my ear. We returned this and are going to be looking for a better quality monitor.