Prints by heating a special thermal paper; no ink, toner, or ribbon required. The paper itself darkens where the printhead applies heat. Advantage: lower ongoing costs; fewer moving parts. Disadvantage: thermal labels fade over time, especially with heat/light exposure.
300 DPI
Dots per inch; higher DPI = sharper, better‑defined print, especially for small text or complex barcodes. 300 dpi is high resolution compared to many shipping label printers (many are 203‑dpi).
4×6 inches
Standard size for shipping labels (USPS, UPS, Amazon, etc.). Makes alignment with typical airway bill / postage label sizes easier.
WiFi / Bluetooth / USB connectivity
Different use cases:
• USB is reliable for desktop or laptop.
• Bluetooth allows mobile / tablet setups.
• WiFi can support networked or more flexible placement without cable.
Printing speed
Measured often in mm/s or inches per second; higher means faster batch printing. Useful when printing many labels.
