● B1 Bluetooth label printer supports iOS & Android and PC. The app included more than support 30+ fonts/ languages, 100+ borders, and 1500+ symbols. Just need to download the free app and connecting printer model B1 from the NIIMBOT app. ● A portable label printer comes with 1500 mAh lithium battery for convenient & fast printing. 5 hours working after one charging. The label printer will shut down automatically when paused for 15 minutes to save power. ● Widely used in supermarket stores,clothing, jewellery, small business home school labels, etc. ● Paper roll label width 20-50mm. mini label maker size: 13 x 9 x 6 cm. ● Paper rolls are not included!