Electronics > Audio > Headphones & Earbuds > In-Ear Headphones
KA-789 In-Ear Wired Earphones
Brand: Generic / OEM
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Audited BOM: 9 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Cold solder joints on the P2 connector (ENG-001) cause intermittent audio failure (RMA-001), leading to customer complaints (REV-001).
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