1. SiRF GSC2x high performance GPS Chip Set 
2. Very high sensitivity (Tracking Sensitivity: -155 dBm) 
3. Extremely fast TTFF (Time to First Fix) at low signal level 
4. Compact size (28.2mm * 20 mm * 3.4mm) suitable for space-sensitive application 
5. One size component, easy to mount on another PCB board 
6. Support NMEA 0183 and SiRF binary protocol