DJI Action 2 Magnetic Protective Case protects your camera unit from impacts, scratches and abrasions. The other case can be used with front touch screen modules and power modules. The material of the magnetic protective case is also made of a heat-resistant polymer to help optimize your video. The DJI Action 2 automatically detects this when the case is on, enabling heat control to increase heat resistance, allowing you to shoot longer in normal environments.