Weight Saving Mechanism - Sony MDR-NC500D Operating Instructions Manual

6. Weight saving lI1echanislI1
,
Magnesium and 7075 aluminum are used as the material for the housing and the
headband, respectively.
By using these unstintingly, the mass is reduced to as small as 195 g or more than 10 %
weight reduction.
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In comparison with MDR-NC60.