If you have listened to it once before, no traffic is required to listen to it next time. There will be a cache file after the first time you listen, and you can continue to listen even if you are shut down. Listening to downloaded songs does not require data traffic, but you should pay attention to whether the option to download lyrics and song information is turned on in the settings. If it is turned on, you will consume data when listening to songs. It is recommended to check it. Hope this helps. 1. Just open a hotspot on your mobile phone and let the car connect to it. Software such as navigation and music require data traffic, while voice recognition control does not require data traffic. .

2. Don’t worry about navigation traffic. You can use that package for ten years. Other traffic can be connected to hotspots or Bluetooth! .

3. This kind of car-machine can be connected to the mobile hotspot. .

4. Just connect the mobile phone to the mobile hotspot. .