... Dots FSTN (Blue LED Backlight)Display Contentprinter status(serial, Bluetooth, paper out error), baud rate, speed, density ... font, speed, density, password, black mark,Bluetooth etc.Multilanguage21 codepagesSensor Paper End SensorInterface RS-232,USB ... 80%Storage Humidity10~90%AccessoriesStandardpaper, power supply(Adapter),serial cable, leather caseOptionalvehicle charger ,external charger ,battery ...