Agreed. Oneplus 9 wireless charging can be Xiaomi wireless charger. Oneplus 9 supports 30W fast wireless charging, OnePlus 9 also supports wireless reverse charging function, which allows the mobile phone to reverse charge other devices that support wireless 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.