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Wireless Plug-in Doorbell, 32 Chimes, 330ft Range, SIGMA-LKM3013PTB
Brand: Generic / OEM
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Audited BOM: 14 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 generic RF chipset (COMP-003) with low sensitivity and poor interference rejection (ENG-001) leads to signal loss, resulting in communication failures and customer dissatisfaction (RMA-001, REV-001).
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