mobile barcode printer USB & bluetooth 80mm portable receipt; bill; barcode thermal printer 60mm/s DC7. ... hand-hold.5.Abundant interfaces, strong expansibility, support RS232,USB,Bluetooth,WIFI, IrDA6.Low power consumption design, high-capacity battery, support ... roll paper (57mm/80mm wide, 40mmø)InterfaceSerial(RS-232C)/USB/Bluetooth. WIFI/IrDAambient temperaturePrinter -10°C ~ 50°C (14°F ~ 122 ...