Qi is a global standard that makes wireless charging possible for your device. With a
Qi-compatible device, you don't need to connect any cables. You just place your
device on the charging surface.
Qi works using magnetic induction, and is currently designed for devices that use 5
watts of power or less, such as mobile phones. Qi chargers and devices use the same
frequency, so as long as their active areas are touching, all Qi products are
compatible, regardless of manufacturer or brand. For more details, see the user
guides of both devices.