One is short-range wireless, where you can actually communicate with the device from nearby, either through Bluetooth or wi-fi, and the other is long-range, where you can communicate with the car through the cellular network, or through one of the radio stations.
一种是短程无线网络，这样你可以直接 和附近的装置进行通信， 比如通过蓝牙或 wi-fi， 另一个是远程网络，让你可以 通过移动网络 或者通过某个无线电电台与车进行通信。