SEVENTEEN LIGHT STICK VER3 is a lifestyle application developed by HYBE Co. Ltd. for Android devices. This free app offers a range of features tailored for SEVENTEEN fans. Users can easily connect their light stick to their smartphone via Bluetooth, enabling various functionalities such as changing LED colors and enjoying stage effects during concerts. The app includes a Concert mode where users can input ticket information for enhanced experiences, and a Self mode for customizing LED lighting colors. Additionally, users are reminded to register their seat information before the concert and ensure their light stick's battery is sufficiently charged to avoid interruptions during the show.