Liberate your Amazon Echo 2 from the constraints of a power cord

The Sky battery base from Ninety7 can free your smart speaker from an AC outlet for up to 8 hours.

from PCWorld https://www.techhive.com/article/3269400/speakers/liberate-your-amazon-echo-2-from-the-constraints-of-a-power-cord.html#tk.rss_all
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