Electronics > Audio > Headphones & Earbuds > True Wireless Earbuds
300mAh Bluetooth Earbuds EL-BT4 IPX4
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
The low-quality battery (ENG-001) fails quickly, leading to charging failures (RMA-001) and customer dissatisfaction (REV-001, REV-002).
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