Electronics > Portable Audio & Video > Portable Bluetooth Speakers
Portable Bluetooth Speaker EL-1121
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 use of a low-quality Micro-USB connector (ENG-003) leads to premature failure, resulting in RMA (RMA-001) and consumer complaints (REV-003) about the product not charging.
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