BEEKAY® Bluetooth only Thermal Label Printer using laptop only and Mobile only with application which can print 4×6,3x5,2x1,4x4 Adjustable Size 203 DPI,Compatible windows and mac for Shipping Barcode Label Ecommerce 1 Yr WarrantyKey Features: Crystal Clear Printing (203 DPI Resolution)Every barcode, text, and QR code is printed with precision for 100% scannability. High Speed Performance (152mm s)perfect for bulk order processing from Mobile. 4"X6", 3"X5",4"x4", 2"X1" and almost all size labels No Ink, No Toner, No Ribbon NeededDirect thermal technology means zero extra costs on cartridges, Ribbon, Tonner just load thermal labels and print. Compatible with All PlatformsWorks