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Model # MDR-Q55SL | change model...
This model is also known as: MDRQ55SL, MDRQ55SL/BLUE, MDRQ55SL/GOLD, MDRQ55SL/SLVR, MDRQ55SLBLUE, MDRQ55SLGOLD, MDRQ55SLSLVR,
Serial Number Location: No Serial number on headphones.
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