Lets take a look what is happening with this relatively rare cassette deck from Hitachi!
It has a clone sister cassette deck Lo-D 7 !

Specs

Type: 3-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.76 cm/s
Heads: 1 x record, 1 x playback, 1 x erase
Tape Type: type I, CrO2, Metal
Noise Reduction: B, C
Frequency Response: 30Hz to 19kHz (Metal tape)
Signal to Noise Ratio: 75dB (dolby C)
Wow and Flutter: 0.1%
Dimensions: 435 x 110 x 272mm
Finish: silver
Year: 1983