Xiaomi blog:

Mi Air Charge Technology enables users to remotely charge electronic devices without any cables or wireless charging stands. Today, we enter a true wireless charging era.

And:

The core technology of Xiaomi’s remote charging lies in space positioning and energy transmission. Xiaomi’s self-developed isolated charging pile has five phase interference antennas built in, which can accurately detect the location of the smartphone. A phase control array composed of 144 antennas transmits millimeter-wide waves directly to the phone through beamforming.

To get a sense of what this looks like, watch the video below. This seems like a remarkable achievement, though I have doubts as to its practicality. Not only is there a cost to the box itself, but there’s the sheer size of the charger, not to mention the question of charge inefficiency (how much power the charger consumes as compared to a traditional wired brick). And, of course, there’s the question of the reality of this as a product.

Taking this with a grain of salt, but will be fascinated to see this roll out, if it ever does.