Electronics > Audio > Headphones & Earbuds > Neckband Headphones
Neckband Bluetooth Headphones with Display KA-9500
Brand: Generic / OEM
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Audited BOM: 12 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 prematurely, leading to complaints of short duration (REV-001) and complete charging failure (RMA-001).
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