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Amazon.com: Sony SRS-XB41 Portable Bluetooth Speaker: Wireless Party Speaker with Flashing Line Light - Loud Audio for Phone Calls Bluetooth Speakers - Black - SRS-XB41 : Electronics
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CameronSino Battery for Sony SRS-XB40 SRS-XB41 fits Sony ID770 JD770B Speaker Battery 6800mAh/50.32Wh 7.40V Li-ion Blue
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