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BRAND NEW SONY - Wired Extra Bass In-ear Headphones (MDR-XB50AP) - electronics - by owner - sale - craigslist
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Amazon.com: Sony MDRXB50AP Extra Bass Earbud Headphones/Headset with Mic for Phone Call, Black : Electronics
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Amazon.com: Sony MDRXB50AP Extra Bass Earbud Headphones/Headset with Mic for Phone Call, Black : Electronics
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Sony MDRXB55AP Wired Extra Bass Earbud Headphones/Headset with Mic for Phone Call, Black : Electronics - Amazon.com
![So how exactly does this bass booster work? I'm very curious. This is on the back of the packaging of the Sony MDR-XB50AP. : r/headphones So how exactly does this bass booster work? I'm very curious. This is on the back of the packaging of the Sony MDR-XB50AP. : r/headphones](https://preview.redd.it/so-how-exactly-does-this-bass-booster-work-im-very-curious-v0-7hg1oum4892a1.jpg?auto=webp&s=6c13c7bdebcbcec01b65743057d6771667d4933a)