The feature of this arc self service payment machine: Optional monocular 5 million pixel or binocular 2 million pixel wide dynamic anti-backlight camera, support live monitoring, efficient infrared fill light; Optional 300,000 pixel code scanning window, local hard decoding; Optional NFC card reader; Optional embedded 58 or 80 thermal printer, label printer; Optional microphone array, support single or dual microphones; Optional shell with multiple colors, default white; Polymer composite plastic shell, unique arc frame design;