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Serial USB OTG

john faber marin

Send Data using DTMF system

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QR And Barcode Printing

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keyboard WIFIDirect Wireless

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Print commands language

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Printer USB OTG

john faber marin

2,4star

Keyboard Bluetooth Wireless

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Printer Bluetooth Thermal

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Bluetooth Printing Templates

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Explorer SQLite DataBases

john faber marin