The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
The Gadgeteer's review (https://the-gadgeteer.com[3]/2026/08/17/soundpeats-uu2-open-ear-clip-earbuds/) states 'SOUNDPEATS began its broader UU2 sales campaign on August 10, following the product's earlier launch in Japan'. August 10, 2026 is the wider (US/international) on-sale day; the Japanese release was earlier and is not separately dated by any source found.
eCoustics confirms the UU2's $49.99 price and 2026 launch but gives no specific date beyond the general 2026 timeframe, only loosely supporting the pin's stored date.
The Gadgeteer's August 17, 2026 review notes Soundpeats[1] "began its broader UU2 sales campaign on August 10" after an earlier Japan launch, meaning the product was already on sale before the pin's stored September 8, 2026 date.
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