Uploaded December 2025 | Updated September 2026, 3 weeks ago

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A look at a $3.71 ear-bud style blue tooth earphone from Ali-Express. Further evidence of the depth of China's home-grown semiconductor companies.

Built around a part from Blutrum.

photos of die here electronupdate.blogspot.com/2025/12/ali-express-bluetooth-earbud.html