Electronics > Audio > Audio Components > Headphones & Earbuds > True Wireless Earbuds
A-163 Bluetooth Wireless Earbuds
Brand: Generic / OEM
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Audited BOM: 10 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Soldering failure of the charging port (ENG-001) directly leads to RMA for non-charging (RMA-001, RMA-006), which is corroborated by negative reviews (REV-001, REV-005).
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