The production and sale of dual-screen POS machines must comply with a series of international and domestic standards, including but not limited to payment security standards, electromagnetic compatibility standards, and energy efficiency standards. These standards ensure the stability, security, and environmental friendliness of the equipment, protecting the legitimate rights and interests of consumers and merchants. Meanwhile, with continuous technological advancements, dual-screen POS machines are constantly being upgraded to adapt to more complex payment environments and higher security requirements.