Car telephones, also known as vehicle phones or automotive phones, are communication devices designed for use while driving a car. They are intended to ensure that drivers can stay connected while on the road, without having to look at their mobile phones, which can be dangerous and illegal in certain jurisdictions. Another synonym for car telephones is "in-car phones", which is self-explanatory. "Mobile car phones" is another synonym, which highlights the portability of such phones. Additionally, "cellular car phones" refers to the underlying technology used to connect the phones to a cellular network, while "wireless car phones" emphasizes the absence of cords and wires.