【Compact and Portable】The B3 high-definition mini label printer measures just 108x83x50mm, making it easy to carry and use anywhere. 【Versatile Label Printing】Compatible with multiple label sizes including 20x10mm, 25x25mm, 30x15mm, 40x20mm, and 50x50mm for various labeling needs. 【Thermal Printing Technology】Utilizes thermal printing technology, eliminating the need for ink and reducing ongoing costs. 【Rechargeable Battery】Features a built-in 1200mAh lithium battery, providing extended use on a single charge. 【High-Quality Output】Prints at 200dpi resolution, ensuring clear and crisp labels for all your organizational needs. 【User-Friendly App】Comes with the "Fun Print" app, offering a vast array of templates and free editing options for customized labels. Specifications: Size: 108x83x50mm Power supply: built-in 1200mAh lithium battery Charging interface: Type-C USB Resolution: 200dpi Printing method: thermal/inkless printing Charging time: 2 hours App: fun print Recommended Continuous Use: 1 hour (to prevent overheating) Compatible Label Sizes: 20x10mm, 25x25mm, 30x15mm, 40x20mm, 50x50mm