1, the application of products:2G / 3G / 4G communication module 2, the product background:GSM / GPRS / WCDMA / HSPA / GPS module design integration, material procurement, PCBA (Printed Circuit Board Assembly) patch and test, module product shipments of more than 10 million, export-oriented products. 3, technical difficulties:

 

 

 

 

 

4, product display: