How much traffic does sunflower control a2 require

4G traffic, 2.4G WiFi. control control A2 supports the use of 4G network card to access the Internet, you need to match the specified model of network card, recommended: Dandelion X4U, Huawei E8372h-155, ZTE MF79U, make sure that the firmware version of the control control A2 is 1.1 and above before use.