1. The speaker crossover connector in this car audio conversion kit features a mini design. Its compact shape makes it easier to install and arrange in the limited space of a car without taking up too much room, making your car audio conversion more convenient. 2. It uses pure copper U-shaped connectors for coaxial speaker wiring. The pure copper material has good conductivity, which can ensure stable transmission of audio signals and effectively reduce signal loss and interference, allowing your car audio to present clear and pure sound quality and bring you a good listening experience. 3. In terms of charging, it uses a common car charger for wired charging. This charging method is common and stable, meeting daily usage needs and enabling your device to operate normally during driving so that you can enjoy wonderful music to the fullest. 4. Whether you are commuting on city roads or going on a long - distance self - driving tour, it can create a comfortable music environment for you.