1. SiRF starⅢ high performance GPS Chip Set 
2. Very high sensitivity (Tracking Sensitivity: -159 dBm) 
3. Extremely fast TTFF (Time To First Fix) at low signal level 
4. Compact size (25.4mm * 25.4 mm * 3.3mm) suitable for space-sensitive application 
5. One size component, easy to mount on another PCB board 
6. Support NMEA 0183 and SiRF binary protocol