J-JUN OFFICIAL LIGHTSTICK is a lifestyle application developed by PIKABON K.K. exclusively for iPhone users. This app is designed to enhance the concert experience by providing a synchronized light show using the official J-JUN penlight. With its main features, users can enjoy a variety of light effects during streaming concerts.

One of the key features of this app is the streaming concert mode, where the penlight can be synced with the performance data via Bluetooth. This allows users to enjoy a diverse range of light effects specifically designed for concerts. It is important to note that this menu is only accessible during concerts.

The app also supports Bluetooth connectivity, allowing users to connect their penlight to their smartphone by pressing and holding the penlight button for 3 seconds. Once connected, the penlight and smartphone will synchronize, enhancing the overall concert experience.

In addition, J-JUN OFFICIAL LIGHTSTICK offers a self-mode feature, where users can select their desired color on the smartphone screen, and the penlight will change accordingly. This allows users to customize their light experience based on their preferences.

Furthermore, the app provides a battery check feature in self-mode. By tapping the "Battery Check" button located at the bottom of the screen, users can check the battery level of their penlight and determine if a battery replacement is necessary. Please note that the displayed battery level may vary depending on the battery performance and smartphone model.

Before attending a concert, it is recommended to check the battery capacity of the wireless control light and replace the batteries if the capacity is low.

Please note that certain access permissions are required to use this app, including Bluetooth access for penlight connectivity.

Experience the ultimate concert experience with J-JUN OFFICIAL LIGHTSTICK, a must-have app for J-JUN fans and concert enthusiasts.