The 20W Magnetic Wireless Power Bank you mentioned is an external battery with a capacity of 10000 mAh. It is designed to wirelessly charge compatible devices using magnetic technology. The power bank uses a USB Type-C connector for charging its own battery.

One important thing to note is that high-power charging can potentially generate heat. It is recommended to use the power bank with a magnetic case, which may help dissipate the heat and provide better thermal management during charging.

The charger features wireless charging capabilities, allowing you to charge your compatible devices without the need for cables. Simply place your device on the power bank's magnetic surface, and it will initiate the wireless charging process.

Please keep in mind that the information provided is based on the details you provided about the power bank. If you have any specific questions or require further assistance, feel free to ask!