Suitable for food pricing, clothing tags, and other retail needs, catering to mainstream printing requirements in the market Compact and portable, simple and easy to use: Install label paper,connect via Bluetooth to your phone, and edit and print using the app Larger and more versatile printing capabilities with a width range of 20-50mm, accommodating a variety of content printing needs Ink-free and environmentally friendly, ensuring safety and non-toxicity for a safer printing experience Specification: Model: B1 Printing Accuracy: 203DPI Charging Interface: Type-c Printing Speed: 20mm/s-50mm/s Connection Method: Bluetooth/Computer Paper type: Gap Paper/Black Mark Paper Size: 132x91x61mm Weight: 293g Effective Printing Width: 20mm-50mm Label Template: Automatic Recognition Battery Capacity: 1500mAh Note: Choose printing paper with a width of 25mm. The printing paper must be used with a printer of the same brand.