【Roll paper compatible inside and outside】Our machine can support any length of paper rolls, reducing the time for changing rolls during work and increasing work efficiency. (You can swipe down on the screen and know how to use it.) 【Heat Sensitive Machine】 Different inks do not use ribbons, and use label widths from 1.05"" to 4.72"", including 4"" x 6"", 4"" x 4"" shipment, warehouse, barcode and ID label, batch Mail labels, etc. 【Bluetooth and USB】Automatic label recognition, supports Bluetooth and USB connection, will automatically capture the label and send it to the printer. 【Meet model and market demand】 Compatible with Windows (XP and higher) and Mac. Used on most platforms in the market, including ups, Amazon, schools, companies, and express. 【Easy to carry】 It can be used with any thermal label. The package comes with 500 4""×4"" labels for use. High speed 203dpi, about 50-60 labels per minute