1,Mini bluetooth thermal Printer 2,Bluetooth and RS-232 3, usage: bill printer 4, 1 year warrnaty 5, SDK for Android Mini bluetooth thermal Printer (Printer MP300)1, Mini bluetooth thermal Printer 2,Bluetooth and RS-2323, use: bill printer, barcode printer4, 1 year warrnaty5, SDK for Android PrintPrinting MethodThermal LinePrinting Speed50mm/s(average), 65mm/s(max)Resolution8 dots/mm, 384 dots/ ...