What is the difference between an automatic connection and a dual connection?

Automatic connection and dual connection refer to different ways of connecting the earbuds to other devices. Automatic connection means that you only need to turn on the earbuds and the device will automatically connect, which is convenient, without having to manually select the device. Dual connection means that the device can be connected to two different devices at the same time and can quickly switch between the two devices. It is suitable for scenarios where you need to connect to multiple devices at the same time, such as using a computer while working and answering mobile phone calls.