1. SiRF star Ⅲ efficient GPS chipset 2. Excellent sensitivity (tracking sensitivity 159dBm) - 3. In signal faint, a good picture First TTFF (To) still very quickly. Positioning 4. Volume light (13 mm 15mm * * 2.2 mm), it is suitable for special space needs device 5. Single component, easy and other PCB integration 6. Support 0183 and SiRF NMEA binary agreement