1. Printing method: thermal line printing 2. Printing speed: 90mm/s 3. Barcode type: E/JAN13(EAN13)/JAN8(EAN8)/CODE39/ITF/CODABAR/CODE93/CODE128 4. Interface: USB+cashbox+multi-function Bluetooth 5. Power: DC 9V/2A 6. Printing command: compatible with POS/ESC command set 7. Paper width: 57.5-+0.5mm 8. Working temperature: 0 to 45 degrees Celsius 9. Working humidity: 10-80% 10. Paper thickness: 0.06-0.08mm 11. Maximum diameter of paper roll: 50mm 12. Driver: Win9X/WinME/Win2000/WinNT/WinXP/Vista, compatible with Epson, Samsung 13. Line spacing: 3.75mm (adjustable) 14. Print column: 384 dots/line