new here.......need ur advices

[blackiy]

hello i am new here and i need ur help
i want to set a gps navigation for my car .so i went for google search and found a site .
the price of the product between 300~400$
what do u think about it ?
is it worthy to buy?
the site is https://www.cargpsnavi.com/digital-scree ... _p733.html
or if u knew some good sites
please tell m