No.: Font A: 32 Character/Line, Font B: 42 Character/Line, Simple/Traditional Chinese: 16 charaters/line Character: The Standard GB18030 Simplified/traditional Chinese Characters Library Character Size: ANK Character, Font A: 1.5 3.0mm(12 24dots) Font B: 1.1 2.1mm(9 17 dots) Simplified/Traditional: 3.0 3.0mm(24 24dots) Barcode Character: -Extended Character Set: PC437/Katakana/PC850/PC860/PC863/PC865/WestEurope/Greek/Hebrew/EastEurope/Iran/WPC1252/PC866/PC852/PC858/IranII/Latvian/Arabic/PT151,1251/PC737/WPC/1257/ThaiVietnam/PC864/PC1001/(Latvian)/ (PC1001)/(PT151,1251)/(PC1257)/(PC864)/(Vietnam)/(Thai) -Bar code: 1D Barcode: UPC-A/UPC-E/JANI3(EAN13)/JAN8(EAN8)/CODE39/ITF/CODABAR/CODE93/CODE128 2D Barcode: QRCODE Graphics Printing: Supports bitmap dowmload and print(support each bitmap size Max.8K, download up to 5pcs) Smart Power Saving: Support Variable Speed Printing: Support Dormancy: Support Battery: Built-in 1500mAh rechargeable lithium polymer battery, 7.4V Operating System: Compatible with Android, iOS, Linux, Windows Operating Temperature: 0~50?, Operating Humidity: 20~85% Storage Temperature: -20~ 60?, Storage Humidity: 5~95%(No Dew) Item Size: 12.9 8.2 6.1cm / 5.1 3.2 2.4in Item Weight: 245g / 8.6oz Package Size: 16.0 14.0 7.2cm / 6.3 5.5 2.8in Package Weight: 450g / 15.9oz Notes: It does not support MAC system. Bill version can only print small tickets, label version can only print label paper. Before using, please follow the driver link to download the printer driver to the computer. The PC driver download link: http://www.dgkinkon.com/res/soft/2021/b2b7e8617220caa3.zip Packing List: 1 Thermal Printer 1 Paper Roll(57 30mm) 1 USB Cable 1 User Manual(English)