Electronics > Audio > Headphones & Earbuds > Over-Ear Headphones
EL-1522 Wireless Bluetooth Headphones with Microphone and 3.5mm Aux Input
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-cost Bluetooth chipset with basic RF implementation (ENG-001) directly leads to connection instability and limited range (RMA-001), causing user frustration as reported (REV-001).
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