Features: Thermal printing method, no ink required, convenient and cost saving. BT connection, convenient to use. 200dpi high resolution printing head, clear print, stable performance, long service life. Small and compact design, easy to carry. Built-in 1000mAh battery, long endurance time, can work for a long time. Wide application, it can be used to print notes, errors, timetable, memo, pictures, receipts, etc. Specification: Name: Portable printer Color: Blue/Pink(optional) Printing method: Thermal printing Connection mode: BT(V5.0) Resolution: 200dpi Printing paper size: 57*25mm Charging interface: 5V Micro USB Battery capacity: 1000mAh Item size: 8 * 8 * 3.5cm /3.15 * 3.15 * 1.38in Item weight: Approx. 145g /5.11oz Packing list: 1 * Printer 5 * Rolls of self-adhesive printing paper 6 * Rolls of thermal paper(1 roll has been installed in the printer) 5 * Pens 1 * Charging cable 1 * User manual