An unattended or self-service POS accepts payments compliant with PCI, EMV, NAMA, or EVA in an outdoor setting without cashiers. It usually features rigid tamper-proof design under harsh environments. The WizarPOS unattended POS supports all forms of payments and QR code scanning powered by the Android platform, while quickly integrating with or remodeling the traditional point of sales systems. The unattended POS are widely used in vending machines, self-serving services, gas stations, parking lots, laundromats, and amusement parks.