GPS bus stop audio auto play device

intruduction: 1.Use GPS technology,without manual operation,sharing the driver labor intensity,safe operation. 2.5HZ GPS technology and external antenna GMOUSE,signal stronger,more accurate position. 3.Support U-disk upload/download data and automatically detects and update the U disk data. 4.Support set station coordinates,trigger distance and drive direction on Google Earth,do not need Collect points. 5.Electromagnetic interference(EMI) multi-barrier treatment,especially