1PORTABLE PRINTER: This Bluetooth thermal printer is designed to be portable, easy to operate and carry, suitable for offices, homes, outdoor travel, schools, etc., allowing you to use it anytime, anywhere. 2200DPI AND BATTERY: This printer adopts HD printing technology, providing you with 200dpi clear printing, equipped with a 2600mAh lithium battery, can print 140 sheets A4 thermal paper when fully charged. 3FOR THERMAL PAPER: This wireless printer supports thermal roll paper and thermal folding paper printing, suitable for thermal paper with a width of 57216mm, black white imaging, to meet more printing needs. 4THERMAL PRINTING: This portable Bluetooth printer uses thermal printing and does not require ink, toner, or ribbons, has low operating noise, which is convenient and environment friendly. 5GOOD COMPATIBILITY: This Bluetooth printer is compatible with computers and phones, suitable for Windows, for OS X, for iOS, for Android system, can be connected to a computer via USB C to print the files you need.