Specifications Printing Method Thermal dot line printing Printing Resolution 203dpi, 8dots/mm Printing Speed (Max) 70mm/s Paper Width 58mm Valid Printing Width 48mm Paper Thickness 60~80µm Roller Diameter ≤540mm Loading Mechanism Easy loading mechanism Interface Bluetooth and USB Character Set Font ASCll:9×17,12×24, Multiple code pages support Barcode Symbologies 1D UPC-A, UPC-E, EAN8, EAN13, CODE39, ITF, CODEBAR, CODE128, CODE93 Barcode Symbologies QR code Graphics Supports bitmap printing with different density and user- defined bitmap printing (Max. 40K per bitmap, and Max. 64K in total) Detection Sensors Paper out/low battery LED Indicator Power Red LED Indicator Bluetooth Blue LED Indicator Charging Green LED Indicator Error/Paper out Blue Charging Charger 5V/1A adapter Battery 1500mAh/7.4V rechargeable Li-ion battery. Full charge can print 350~300m (printing density :512.5%) or 250~300m (printing density :525%) Physical Characteristics -5°C ~ 50°C, 25% ~ 80% R.H, no condensation Physical Characteristics Storage -40°C ~ 60°C, 5% ~ 95% R.H, no condensation Dimension 124x85x57mm (WxDxH) Weight 190g (without paper roll) Software SOK Android and iOS Software Driver Win7/Win8/Win10   Download BP-203 Bluetooth Mini Printer Brochure Here