GPS: 
4.3' high clearness LTPS display, display resolution 480*272
Double track earphone port, inside hi-fi 1W speaker, volume adjustable
Key press + touch panel operation
Inside high sensitivity SIRF STAR III GPS receiving module
Inside GPS antenna and can connect outside antenna.
Can run GPS software in SD card
Play mp3, mp4 and other similar files
Video format: asf, avi, mp4, wmv
View photos format: BMP, JPG, PNG, GIF
Transfer music to car radio by internal FM sender
May inside lithium battery that be recharged through outside DC12V power or directly use power from car cigarette fire
E-book, picture, calendar, schedule and more
Support rearview mirror function by wireless
Support Tire Pressure/Temperature measurement monitor and display
Support Tire Pressure/Temperature measurement display

TPMS:
Real-time Tire Pressure and Temperature Monitoring
1、Alert Threshold Programmable by User
2、DIY Installation
3、Battery Replaceable, Significant Cost Saving Compared to Other Models with Sealed Battery.
ADVANTAGES:
a)  High Precision, Fast Response Time
b)  Works with Tube or Tubeless Tires
c)  Effective Transmitting Range 100 Feet
d)  Alert history downloadable

INSTALLATION:

Sensor is attached to the valve stem

RearView: