The Short Version
No peer-reviewed study has demonstrated that wireless earbuds impair brain function. Bluetooth earbuds emit roughly 100–1,000 times less RF radiation than cell phones held to the head. The WHO, CDC, and Bluetooth-specific research consistently find no adverse neurological effects at these power levels. The claim's key supporting evidence comes from cell phone studies on children—a fundamentally different exposure scenario. While long-term earbud-specific research is limited, presenting speculative extrapolation as plausible risk is not supported by current science.