Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: The Worst!

We liked our previous The First Years monitor, and when it stopped working we intended to get the same model, only to find that it had apparently been discontinued. We bought this one because it was the same manufacturer, and we liked the idea of having two receiver units. I wish we had checked here and read some reviews first. We have tried for months (don't ask me why we didn't return them) and have never been able to get clear reception. The unit picks up random cell phone conversations, radio broadcasts, interspersed with maddening static, electronic farts and squeals. Our old model had convenient built in rechargable batteries, but these units take 4 AA batteries each, making them fairly heavy, and they suck the power down very rapidly. Don't make the same mistake we did. Look elsewhere for a monitor.