Instruct: Classify the given review into positive or negative sentiment.
Query: Big Mistake!

I agree with all of those reviewers that gave 1 star to this unit. It's to bad that you are not given the option to rate it as zero stars. First unit I had could not even select the FM radio mode so it was exchanged for another. Second one could select FM mode but could only receive a few stations and only if you stood still. All pre-recorded music cd's skip continually. I was able to play some mp3's. Stay away from the RioVolt SP350. It was a big mistake for me to buy it and a complete waste of money.