1. Cov chaw thov: tsoomfwv lub tshuab luam ntawv, chaw luam ntawv tsis pub leej twg paub, cov luam ntawv loj thiab nruab nrab, tshaj tawm tsev, ntawv tshaj tawm, tsev nruab duab, tsev kawm ntawv thiab lwm yam
2 Cov ntawv teev npe: kev khi ntawm cov phau ntawv tiav xws li cov ntawv sau liab, cov ntawv xov xwm, ntu sijhawm, cov khoom siv sablaj, cov ntawv tshaj tawm, cov ntawv xeem, thiab lwm yam.

Yam ntxwv:
1. Muab cov ntawv tso ua tiav ntawm cov ntawv thiab lwm yam ntawv ua tiav;
2. Txais 5.7-nti xim LCD kov lub lag luam vaj huam sib luag, txhua qhov chaw tuaj yeem soj ntsuam tag nrho cov txheej txheem kev khiav haujlwm los ntawm kev ua haujlwm navigation thiab kev daws teeb meem;
3. Kev ua haujlwm siab tswj kev ua haujlwm, lub voj voog yam tsis nres;
4. Kev nrawm nrawm thiab tsis siv neeg hloov chaw ua haujlwm qhov txo cov ntawv pov tseg;
5. Nws tsuas siv ob peb lub vib nas this los hloov txoj haujlwm sib txawv, txuag lub sijhawm thiab txhim kho kev ua haujlwm;
6. Cov ntawv tiav yog tiaj thiab zoo li tus;
7. Kev txhim kho yooj yim thiab yooj yim;





