Electronics > Audio > Headphones & Earbuds > True Wireless Earbuds
TWS Bluetooth Wireless Earbuds EL-1636 Sport with Microphone and Charging Case
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 generic batteries without adequate BMS (ENG-002) and low-cost PCBs (COMP-006, COMP-007) directly leads to charging failures and rapid battery degradation (RMA-001, RMA-002), as reported by consumers (REV-001, REV-002).
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