This paper explores the distribution pattern of SAR1g within the adult male
head during utilization of hands-free operation of contemporary mobile
phones as a source of electromagnetic radiation. The research assesses the
optimal positioning of the mobile phone by examining three distinct
orientations to determine the minimal SAR1g distribution compared to the
conventional talking position when hands-free feature is not utilized. The
analysis encompasses GSM bands operating at 900 MHz and 1800 MHz, depending
on the alignment between the mobile phone and the head.