Features: (1)based on mediatek inc. Architecture. (2)high sensitivityup to -158 dbm tracking, superior urban performances (3)position accuracy(4)cold start is under 37 seconds (typical) Hot start is under 2 seconds (typical) (5)embedded arm7tdmi (6)small form factor and low cost solution (7)on-board flash for gps navigation data (8)gps data interface -ttl level serial port (9)gps data protocol: Nmea-0183 ver.3.01 (10)data output baud rate:4800/9600/38400/57600/115200 bps (default 9600) (11)rohs compliant