The U2W Plus dongle is a wireless CarPlay/Android adapter that is suitable for 98% of existing wired CarPlay-enabled vehicles and wired CarPlay-enabled receivers. If you use an iPhone and your vehicle supports wired CarPlay or these Aftermarket Head-Units (Alpine/ Pioneer/ Kenwood...), you can choose the Carlinkit 3.0. If you use both iPhone and Android Auto, you can choose Carlinkit 4.0. It is the FIRST wireless (Bluetooth + Wifi) CarPlay dongle on the market. With the 4.0 Version update, Carlinkit is the market standard in terms of stability, compatibility, and performance.