*Use GPS technology, without manual operation, sharing the driver labor intensity, safe operation

*5HZ GPS technology and external antenna GMOUSE, signal stronger, more accurate positioning

*Support u disk upload/download data and automatically detects and update the U disk data

*Support set station coordinates, trigger distance and drive direction on Google Earth, do not need Collect points

*Electromagnetic interference (EMI) multi-barrier treatment, especially adapted buses loaded gasoline

*Each speaker inside and outside the vehicle to support 15W digital amplifier, reducing audio effects, playing without distortion

*Support wide range work voltage 10-30V DC