RONGTA Thermal Label Printer 6x4. PHONE: Connects via BLUETOOTH. · RONGTA RP421A Thermal Label Printer. WINDOWS: Connects via USB & BLUETOOTH. Thermal printing. USB + Bluetooth. EASY SET UP: The driver software is easy to install with step-by-step instructional video guides to get your RONGTA printer up and running smoothly and quickly as possible.
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