Oneplus 9 will support 30W fast wireless charging, OnePlus 9 will also support wireless reverse charging function, you can let the phone to other devices that support wireless charging reverse charging, Huawei and Xiaomi flagship mobile phones have been standard with this function, if the user has a real wireless Bluetooth headset supporting wireless charging, this wireless reverse charging function is still quite practical. In addition, if you have a plus 9 at the same time as the iPhone 12 mini and other mobile phones with weak battery life, you can also improve the battery life performance of such mobile phones as the iPhone 12 mini to a certain extent, but it is not clear that the actual power of the infinite recoil is estimated to be about 10W.