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Amazon.com: Sony MDR-XB50BS Black EXTRA BASS Sports Bluetooth In-Ear Headphones MDRXB50BS : Electronics
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Amazon.com: Sony MDR-XB50BS Black EXTRA BASS Sports Bluetooth In-Ear Headphones MDRXB50BS : Electronics
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Amazon.com: Sony MDR-XB50BS Extra BASS Wireless Bluetooth Sports in-Ear Headphones - Blue - Open Box
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Sony MDR-XB50BS review: An affordable wireless sports headphone that fits well and sounds decent - CNET
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