QI is a wireless charging stand
Wireless charging is a process in which an object is charged without using wires: this is made possible by induction. To make this possible, a battery is needed that is able to receive energy from the air. In 1899, Tesla experimented with this type of wireless electricity: it sent it through the ether and 40 km further lit the lights. In 2010, the first television was demonstrated at the CES that used this form of wifistroom. The Wireless Power Consortium has created a standard, the standard is called Qi (pronounced as Chie). Qi is currently mainly used in mobile phones and tablets. Https://www.youtube.com/watch?v=n_iHu1TRsYg