GP-M421 4" Mobile Thermal Receipt + Barcode Printer, Interface: USB+BT
 
Support gap-detection & black mark detection
Clear quality print - 203dpi resolution
Support Bluetooth and USB cable connection
Adjustable printer roll slot for 25mm ~ 112mm receipt and labels printed
Fast charging battery - 3000mAH capacity
Support ESC/POS, CPCL, TSPL emulations
Built-in LED display for easy printers settings
Compatible with windows, Android and iOS mobile devices