Pronavi is a powerful car navigator, it provides you not only navigation, but also car-to-car communication/tracking through gprs(option), it is perfect match for both business such as transportation comany, car fleet.. Etc.. And daily life for personal leisure. Feature of polaris g-88 1. Car navigator 2. Fast booting time 3. Car to car tracking system through gprs(option) 4. Ntsc or pal output to LCD monitor 5. Miscrosoft win CE platform, an open architechure suitable for any navigation system. 5. Support MP3 player & photo viewer from car multmedia/stereo system 6. Map feature including road routing calculation, automatic re-routing, voice navigation guidance, automatic map rotation.. Etc. 7. Sirf iii GPS receiver