Keep everyday packing and labeling moving with the Rongta RP420 thermal shipping label printer. Designed for 4x6 shipping labels and other compatible label sizes, it brings 203 dpi text, barcode and graphic printing to your small-business workspace. With speeds up to 150 mm/s and direct thermal technology, you can print without ink, toner or ribbon. Choose the connection that fits your workflow: use the RONGTA App on a compatible iPhone or Android phone for Bluetooth printing, or connect a Windows or Mac computer by USB with the appropriate RP420 driver. The printer accepts direct thermal media from 38 to 120 mm wide, with a maximum print width of 108 mm. Use fanfold labels behind the printer or an external label holder for roll labels. To get started, connect the printer to power, load compatible direct thermal labels, adjust the paper guides and run label learning. Select the matching label size in your app or printing software before printing.