Instruct: Classify Amazon reviews into positive or negative sentiment
Query: RCA RP2410 Personal CD Player With MP3 Playback

...My biggest two gripes are that it makes a high pitch noise continuously and occassionally snaps. This happened while I listened to many regular store bought audio cd's also. Most of the problem was solved by turning off the ESP, but that didn't help in MP3 playback, only in CD. Even with the ESP off the CD playback had crackling noise which I don't understand at all. Someone at RCA needs to be fired for this, bad quality, but cool grey design. I think I might return the insides and frame the shell. Piece of!