Car GPS jammer can protect the vehicle's whereabouts from privacy.Usually when we buy a product, there will always be more or less gifts, which is a means of marketing. On the one hand, in order to attract customers to buy, on the other hand, it is also to strengthen the cooperation in related industries. In many cases, it provides the best products for customers and meets the needs of customers. I think this is an excellent solution. If there is a car sales store that needs to provide this kind of service, we can contact us for cooperation.