NIIMBOT B4 4-Inch Bluetooth Thermal Label Printer Key Features Space-Saving Design – Compact body with built-in roll bin saves 50% more space. Truly Wireless Printing – Connect via Bluetooth to smartphone or PC, no USB needed. High-Speed & Clear Output – Prints up to 80mm/s with 203 DPI resolution. Cost-Effective Thermal Printing – No ink or toner required, smart alignment saves labels. Smart NIIMBOT App – Auto label detection, 16,000+ templates, multi-language support. Wide Applications – Supports 20–110mm labels (108mm effective print width) for shipping, retail, office, and home use. Product Description Compact & Space-Saving The NIIMBOT B4 is designed with a built-in label roll compartment, measuring only 157 × 135 × 69 mm. It takes up 50% less space than conventional 4-inch printers – perfect for offices, retail counters, and mobile workstations. Wireless Freedom Enjoy full mobility with Bluetooth connection for both smartphones and computers. The B4 supports up to 10 devices at once (3 iOS + 7 Android), making it ideal for collaborative work environments. ⚡ High-Speed Performance With a print speed of up to 80mm/s and 203 DPI resolution, the B4 ensures fast and sharp printing for shipping labels, barcodes, product tags, and more. Ink-Free, Cost-Saving Using advanced thermal printing technology, the B4 eliminates the need for ink, toner, or ribbons. Labels auto-align for zero waste, reducing costs while boosting efficiency. Smart NIIMBOT App The free NIIMBOT app (iOS, Android, Windows) comes with 16,000+ templates, barcode & QR code support, batch printing via Excel, and multi-language features. Print in 3 easy steps: load, edit, and print. Wide Applications The B4 supports label widths from 20–110 mm (108 mm effective print width) and lengths up to 350 mm. Perfect for 100×150mm shipping labels, barcode stickers, mailing labels, supermarket shelf tags, flower shop cards, and even hazardous waste labels. Technical Specifications Model: NIIMBOT B4 Dimensions: 157 × 135 × 69 mm Weight: 757 g Battery: 2000 mAh rechargeable lithium battery Charging: USB Type-C, 5V/2A (3–4 hrs charging time) Printing Method: Direct Thermal Printing (inkless) Resolution: 203 DPI Print Speed: Up to 80 mm/s Label Width Support: 20–110 mm Effective Print Width: 108 mm Label Length Support: 8–350 mm Print Head Lifespan: Up to 50 km Connectivity: Bluetooth & USB Type-C Multi-Device Connection: Up to 10 devices (3 iOS + 7 Android) Operating Temperature: 0–45°C Package Contents 1 × NIIMBOT B4 Smart Label Printer 1 × USB Type-C Cable 1 × Starter Label Roll 100×150mm 50pcs 1 × English User Manual