Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not impressed

I'm now on my second MP120 and just been advised this also needs replacing. The first only had one working earphone. The second worked OK but I was unable to forward or rewind between tracks so I guessed a firmware upgrade would probably fix this - applied as detailed in the manual from the Oregon Scientific website and now it won't turn on.Advise from Oregon - send back to the vendor for a replacement!I've will almost have spent more on postage than the original purchase!