Product Catalog: Sony Dictation Systems: Microcassette Dictation Systems: Portable Microcassette Portable Microcassette BM-535 (Sony) Portable Microcassette Dictating Machine View Details BM-575 (Sony) Portable Microcassette Dictating Machine View Details BM-577 (Sony) Flexible professional features make Sony's BM-577 the perfect choice for portable professional dictation needs. View Details M-450 (Sony) Pressman Microcassette Recorder View Details M-565V (Sony) Pressman Microcassette Recorder View Details M-657V (Sony) Pressman Microcassette Recorder View Details MZ-B10 (Sony) MiniDisc Voice Recorder View Details