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Sony made this unusual battery powered portable stereo record player. The straight line tracking tonearm was built into the main housing and retracted to allow the record to be inserted or removed. Rubber rollers guided the record. Four AA batteries gave about 8 hours of playing time. Had 1/8-inch mini stereo headphone jack. Sound quality was ok but had a sort of mushy tone from an overall lack of headroom, much like a Walkman style stereo cassette player.