Rongta RPP300 Portable Mini 80mm Pocket Mobile POS Thermal Receipt Printer with Bluetooth+USB interfaces,Orange Color Portable,battery-operated receipt printer can be used wireless with a mobile device(sold separately) to printer receipts,labels,or other media up to 3" wide Direct thermal printers use heat instead of ink and are typically smaller,quieter,faster,and more energy-efficient than dot-matrix printers Prints up to 2.94" per second at 203 dpi(dots per inch) for print clarity Wireless Bluetooth capability lets printer connect wirelessly to an Windows&Android smartphone for printing or support windows system printing Weighs 600g;measures 113x103x45 mm/4.45x4.06x1.77 inches(LxWxH);NOT COMPATIBLE WITH SQUARE OR CLOVER