Product details of Rongta RPP200-BU Mini Thermal Printer. Brand: Rongta. Model: RPP200 BU (Bluetooth, USB)Printing way:Thermal sensitive line dot methodPaper width:56mmPaper thickness:60 ~ 80μmValid printing width:48 mmResolution:8 dot/mm (230 dpi)Dot /line:384 dotsPrinting speed:50-80 mm/sPrinting content:Support any languageOuter dimension: 102*108*50mmWeight:340gRolling paper Diameter: ≤30.5mmInterface:Original IR( RAW_IR), VIR, IrDA ( IrCOMM) RS232 port, blue tooth, interfaces varied with different models.Environment parameters:Working temperature: -10°C~ 50°C Working humidity: 20% ~ 85% Storing temperature : -20°C~ 70°C Storing humidity: 5% ~ 95%Paper feeding method:Easy paper loadingMark position:detecting mark positionPaper sensor:LED indicator flashes when come to paper end meanwhile alarm.Printing Command:ESC/POS compatible with commands setPower:1600 mAh rechargeable li-ion batteryPower alarm:indicator flashes when printer will run out of power and give out two short hoots. When running out of power, buzzle will give out interval warning to indicate charging.