Label printer and stylish retro design? The portable NIIMBOT B21 Pro label printer combines both. With a printing width of up to 48 mm and various label sizes and shapes, you can quickly and easily create the labels you need via the smartphone app. Connect the printer to your smartphone via Bluetooth and design the required label in the app. Add symbols and text in different fonts, and print address, cable, name, or product labels, as well as barcodes and QR codes. The built-in 1500 mAh battery provides a continuous printing time of 4-5 hours. The printing technology used is thermal transfer, so no ink changes are necessary. The labels look uniform and professional.