Scientists have discovered that an electromagnetic field can be used to transfer energy between two objects, which are very close to each other, without the need for cables to connect them. Wireless chargers are a fantastic invention that allows some of these devices to be recharged or operated without the need for cables.

In wireless chargers, when power is sent through the primary transmission induction coil in the charging station, an alternating electromagnetic field is created, which then induces a current in the secondary receiving coil in the device that needs to be charged. The current in the secondary coil is used to charge the device's batteries. Therefore, wireless charging is also sometimes known as inductive charging. There are many online sites and stores that sell affordable and high quality wireless charging devices. You can buy a wireless charger through

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Because the primary coil and the secondary coil do not have to be connected to each other, it is possible that the electromagnetic field from a primary coil in a charging device could induce voltage in one or more completely separate secondary coils. 

This means that scientists have been able to design and manufacture devices that can charge more than one device at a time. Therefore, it is possible to buy wireless chargers that allow you to charge a mobile phone or a camera at the same time. They are very easy to use and, as long as the wireless charging devices are used in the manner specified by the manufacturer, they are safe and do not present any known risk of unsafe radiation.