Portable mobile pocket bluetooth thermal printer dimension 100*75*45mm (w*d*h) print method line thermal printer paper width 58mm print width 48mm weight ( g)205g max diameter of paper roll 40mm dot per lie384 dots/lineprint speed 90mm/slife cycle time50km(printing eee^ee^ er 12.5%)/100 million pulsestext and graphic support english, figure, symbol, chinese, graph, curve, icon pre-stored, barcode (code39ean13ean8 codabarcode128code93itf) dot pitch (resolution)203dpi/8 dots/mm interface rs232/mini usb bluetooth support android ~95%standard accessorieslong-term preservable paper, ac adapter, li-ion batteryoptional accessoriesserial interface cable