Electronics > Portable Audio & Accessories > Portable Speakers > Bluetooth Speakers
Portable Mini Bluetooth Speaker with Call Answering EL-1047
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 audio driver (ENG-001) is the root cause of the poor sound quality perceived by users (REV-001), leading to RMAs for bad sound (RMA-002).
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