1.Upgraded version--lighter and smaller than traditional label Makers. DPI increased by 25%. The 1200mAh large lithium battery can print 52 rolls of paper continuously after being fully charged. 2.Save money--direct thermal technology-no ink, toner, and lower cost compared with inkjet printers. We provide a variety of styles of label tapes, such as white, color, transparent, round, price tags. D30 paper is waterproof, wear-resistant and BPA-free. 3.Bluetooth and portable--Phomemo label Printer with wireless Bluetooth connection, easy and fast printing, creating labels from mobile devices, easy to customize labels. Label size from 0.24-0.47Inch (6mm-12mm) great for price tag,Personal item identification, Food date marking,Cable identification and more. 4.High-quality printing--This thermal label printer can provide 203DPI printing resolution, so as to achieve worry-free printing-high-quality clarity, dark imaging and smooth printing effect and fast processing. 5.Tips for Using app--Install Print master App from Apple Store & Google Play->Open the App and Turn on D30 printer->Choose printer model D30 from menu and then click unconnected button at the top of the screen-> Match and connect Bluetooth via the app.