Olympus VN-850PC
Preview: monaural microphone, only the built-in memory (1 GB), PC connection, 2xAAA
Rating: 
Brand history
Recorders
Olympus VN-415PC
monaural microphone, only the built-in memory (2 GB), connect to PC, LCD screen 1.4", 2xAAA
Rating:
Olympus DM-7
stereo microphone, zoom microphone, external and built-in memory (4 GB), connect to PC, TFT screen 2", battery
Rating:
Olympus DM-901
stereo microphone, zoom microphone, external and built-in memory (4 GB), connect to PC, TFT screen 2", battery
Rating:
Olympus WS-831
stereo microphone, external and built-in memory (2 GB) PC connection, the matrix screen 1.43", 1xAAA
Rating:
Olympus WS-832
stereo microphone, external and built-in memory (4 GB) PC connection, the matrix screen 1.43", 1xAAA
Rating:
Olympus WS-833
stereo microphone, zoom microphone, external and built-in memory (8GB), an FM radio, connect to PC, matrix screen 1.43", 1xAAA
Rating:
Olympus VN-731PC
monaural microphone, only the built-in memory (2 GB) PC connection, the matrix screen 1", 2xAAA
Rating:
Olympus VN-733PC
monaural microphone, external and built-in memory (4 GB) PC connection, the matrix screen 1", 2xAAA
Rating:
Olympus VN-732PC
monaural microphone, external and built-in memory (4 GB) PC connection, the matrix screen 1", 2xAAA
Rating: