Summary: I bought this used Sony Pressman M-455 Hand-held Cassette Recorder, and I was immediately impressed with the number of features available on this inexpensive unit. The sound that you recorded is crystal clear at playback, excellent. My only complaint is that sometimes happens a kind of a jam at the beginning of the tape ( I believe is a mechanism problem because of the use?), but I just forward a little bit, and is OK! for me.