Electronics > Audio > Audio Accessories > Headphones & Earbuds > Earbud Headphones
300mAh EL-1638 Bluetooth Earbuds
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 an obsolete Bluetooth chipset (Bluetooth Chipset - COMP-004) causes connection instability (ENG-001), leading to frequent disconnections reported by users (RMA-002, REV-002).
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