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Pada sekitar bulan Januari 2025, aku membeli mouse di sebuah tempat fotokopi di pinggir Jalan Dipati Ukur . Merek mousenya tidak terkenal. Di bagian belakangnya terdapat stiker tanggal, yang dicentang pada "Tahun 24, Bulan 12". Lalu ada tulisan : "Optical Mouse : Tested to comply with FCC Standards. For home or office use. Rating 5V 100mA. Made in China" "The Federal Communications Commission in the United States. An optical mouse contains electronic components that generate small amounts of electromagnetic radiation, mainly from its internal circuits, USB interface, and clock signals. Because of this, it falls under FCC rules for unintentional radiators. The mouse complies with FCC Part 15 regulations, which limit electromagnetic interference (EMI). It has been tested to ensure it does not interfere with other devices, such as radios, Wi-Fi, or TVs." Lalu juga ada logo CE-nya. “CE” stands for Conformité Européenne (“European Conformity”). When a manufact...