2.     Water Proof Housing
3.     High sensitivity (Tracking Sensitivity: -159 dBm)
4.     Extremely fast TTFF (Time To First Fix) at low signal level
5.     Support NMEA 0183 data protocol
6.     Built-in SuperCap to reserve system data for rapid satellite acquisition
7.     Built-in patch antenna.
8.     Super-cohesive magnetic for mounting on the car
9.     USB interface connection port.
10.  Non-slip on the bottom.
11. LED indicator for GPS fix or not fix.
      LED OFF: Receiver switch off
      LED ON: No fix, signal searching
      LED Flashing: Position fixed