SAVE 100% PRINT GAP TIME: Compared to the previous generation, we have upgraded the label recognition units. Now, after you print a label, M221 label printer can immediately start to print the next one, without waiting for the printer to recognize the position of the next label.BIGGER CAPACITY AND FASTER CHARG: M221 wireless bluetooth thermal label printer has been upgraded to print up to 3600 labels continuously on a full charge. Its portable design, coupled with Type-C fast charging, allows you to take this label maker with you anywhere.MADE FOR PHONE, TABLETS & COMPUTERS: M221 bluetooth thermal label maker is equipped with stable Bluetooth 4.2, making it compatible with phones and tablets, allowing for quick connection within just 2 seconds. Additionally, the label printer can be connected to a macOS or Windows computer via USBEASY AND POWERFUL PRINT MASTER: M221 address bluetooth label maker machine works seamlessly with our app, 'Print master'. With over 100 free label templates available in 13 languages, you can print text, barcodes, QR Code, icons, pictures, stickers, and forms. You can also freely edit your own labels to suit your needs. One click is all it takes to batch print, making your business more efficient.-50% NOISE: Compared to the previous generation, we have upgraded the print head, reducing printing noise and fluctuations by 50%, making it more quiet and stable. M221 is the top choice for a printing environment that requires quietness and privacy.