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Amazon.co.jp: Sony NW-WS623 Walkman W Series NW-WS623 L Headphones, 4 GB, MP3 Player, Bluetooth Compatible, Waterproof, Saltwater, Dustproof, Cold Resistant, External Sound Capture, Blue : Electronics
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Amazon.co.jp: Sony NW-WS623 W-Series Walkman with Integrated Headphones, 4 GB, Sports MP3 Player, Bluetooth Compatible, Waterproof, Saltwater Water, Dustproof, Cold Resistant Performance, External Sound Capture Function, Lime Green : Electronics
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