Mini Portable Printer 1.Free android test app,source code 2.interface:serial,IR,USB & bluetooth 3.Small size, ... functionality to any mobile receipt printing application, such as: QR code printing; mobile POS / retail; hospitality ; parking citations ; deliveries ; ... fixed wireless terminal,etc. We have the capacity to develop software used in telecommunication products with Atmel,Simcom,Holtek, EMC, ...