... 20 mW/32ohm HeadphoneDisplaySpec5.0 inch TFT LCD Support full-touched control,full hand-writingResolution800*480 ... main chipexternal antennaN/AReceiver frequency1575.42MHzPortCOM1Baud rate4800Track22 TracksGPS module sensitivity-159dBmPrecisionPosition: less 10 metersTTFF(depend on ... user manual, mounting, bracket, Travel charger(optional), HIgh quality GPS DVR HD 800*480 5inch gps with bluetooth ...