This is one of the latest news of the day, that Xiaomi is working in there smartphone for reverse wireless charging.
With reverse wireless charging, Xiaomi will follow in the footsteps of Huawei. Which is first introduced the feature in its flagship. XDA’s also mentioned that Mi Mix 4 will be the first smartphone from there company.
It is the feature in which users can charge their smartphones from other devices without any wire or cable\wireless. This feature will automatically turn off in 90 seconds if no device is being charged so it is good for safety purpose also.