Specifically designed for TBB Inverter Pack system, this APP is dedicated to: 1) Help users to know the working data of battery and inverter in real time 2) Provide online update of the latest firmware version 3) Provide users with a better understanding of the device through the battery, inverter details page and system settings. All in all, this APP will be a useful tool in the process of using TBB Inverter Pack system. We wish you always have fun in using TBB products.