Electronics > Portable Audio > Portable Speakers
6.7" x 6.7" x 15.7" (17x17x39.9cm) USB TWS Speaker D-S30 Black Red Wired 20W
Brand: Generic / OEM
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Audited BOM: 14 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The use of low-quality audio amplifiers (ENG-001) leads to premature failures (RMA-001) and sound distortion perceived by users (REV-001, REV-002).
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