Restrictions apply to each individual homogeneous material. Intentionally added: Substance deliberately used in the formulation of a material 
 or component...

https://www.apple.com/jp/environment/pdf/Apple_Regulated_Substances_Specification_Sept2018.pdf

regions. Preclinical Design and Algorithm Testing Apple has developed a probabilistic modeling approach for pure tone audiometry testing. The algorithm cons...

https://www.apple.com/jp/health/pdf/Hearing_Health_Features_on_AirPods_Pro_2_October_2024.pdf