Wireless charging a.k.a inductive charging, uses an electromagnetic field to transfer power and charge the device. It consists of having an inductive coil placed in the base of charging station and one in the device.
The operation method of wireless electricity transmission is done by magnetic induction technology. There are two coils, a transmitter coil and a receiver coil. An alternating current in the transmitter coil generates a magnetic field which induces a voltage in the receiver coil. This voltage can be used to power a mobile device or charge a battery. For energy-efficient power transfer, the phone must be able to shut down the transmitter when the battery is full. The phone, therefore, can control signals to the charging station.

Rather than plugging anything into the phone, you simply place the phone on top of a mouse-sized charging pad to wirelessly give it juice. The process, called the "inductive method," will reportedly support the Qi wireless power standard, meaning it should be compatible with other wireless charging products.