Tools for controlling BLAUPUNKT customer car multimedia systems via Bluetooth，Run the program, connect the Bluetooth of the car multimedia system in the program setting interface, the program will need Bluetooth and positioning permission (the BLE function needs the positioning permission, otherwise the device can not be found). If the car is our company's product, it will be able to connect to Bluetooth. Display and control the information and status on the car, otherwise it will not be connected.