... Parameter Print performancePrint methodThermal printing with direct line Print density203dpi (8 dots/mm),384 points/lineEffectiveprint width48mmPrint speedAround 60mm/second,or ... , charge by connectingwith USB on computerBattery packPolymer battery7.4V 1200mAhSDKSDK for Windows mobile, WINCE, Android ,Iphone,Symbia, Blackberry(Option)Reliability Printer head ...