1, after the car is re-ignited, it must be re-connected every time, and sometimes it must be wired to make a wireless connection.
2, the wireless module is connected to the car, the sound quality will become worse during use.
3. In the process of use, it is easy to be interfered by other Apple phones. In addition, if there is someone else in the car, after the automatic connection, the phone comes in and puts out will be very awkward