Mini Thermal Tattoo Transfer Copier Clear Patterns Tattoo Transfer Printer with 1200mAh Battery White Item Type: Thermal Tattoo Transfer Copier Material: ABS, electronic components Battery Type: Lithium Battery 1200mAh(Included) Input: 5V 2A Interface: USB Machine Length: Approx. 262mm / 10.3in Machine Width: Approx. 57mm / 2.2in Machine Height: Approx. 29mm / 1.1in Print Density: 8 dots /mm (203dpi), 1728 dots/line Print Speed: Maximum printing speed is 15mm/s Effective Print Width: Approx. 216mm / 8.5in Applicable Printer Paper: Standard A4 thermal printer paper or roll paper Endurance: 12.5% coverage files can be printed about 200 sheets, and the actual measurement of pictures is about 80 sheets(in the case of medium concentration). Print Head Life: 50km Interface: TYPE C USB interface Support Connected Devices: Mobile phone, for Windows7/8/10 Key Function: Power lamp: High power display green; Medium power display red; Low power red blinking. Charging light: Indicates the charging status of the printer. When the printer is in charging state, the indicator light is on. When the printer is fully charged, the indicator is off. Status indicator: Indicates the real time status of the printer. When the printer is in normal state (with paper and print head down), the indicator is off. When the printer is in error state (lack of paper or cots raised), the indicator is blinking. Paper feed key: Press the paper feed key for a distance. Long press for 3 seconds to produce paper about A4 length. Open cover key: Press the open cover key to open the cover for cleansing and paper stuck processing Power switch: Press "-" to start the system. Please turn off the power after use.