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Amazon.com: Fanxoo ED3 Battery Base for Echo Dot 3rd Gen, Portable Charging Power for Alexa Dot 3rd, Echo dot Auxiliary Power Accessories (Not Include Echo Dot)(Wihte-37W) : Electronics
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Amazon.com: Made For Amazon, Battery Base in Black, for Echo (4th generation). Not compatible with previous generations of Echo or Echo Dot (1st Gen, 2nd Gen, or 3rd Gen). : Everything Else
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