Niuniu Portable Pocket-size Thermal Printer Wireless BT Error Printer Simple Operation Support Photo Notes Text Memo Product Feature Thermal printing method, no ink cartridge, convenient and cost saving. 200dpi high resolution printing head, clear print, stable performance. Open the cover to install the paper roll, connect with your devices through BT and start to use it. Small and compact, easy to carry and use. Built-in 1000mAh large capacity battery, long endurance time. Wide application, can be used to print pictures, errors, notes, timetable, memo, receipts, labels, etc. Product Specifications: Name: Portable mini printer Color: Blue Printing method: Thermal printing Connection mode: BT Definition: 200dpi Printing paper size: 57*25mm Charging port: Micro USB Battery capacity: 1000mAh Item size: 8 * 8 * 3.5cm /3.15 * 3.15 * 1.38in Package Included: 1 * Printer 3 * Rolls of self-adhesive printing paper 1 * Roll of thermal paper(Installed in the printer) 3 * Rolls of color printing paper 1 * Data cable 1 * User manual