LEECHANGSUB이창섭 LIGHT STICK is a free Android app designed to enhance the concert experience for fans using the official light stick. It features a Concert Mode that syncs with seat information, allowing for coordinated light performances during events. Users can easily connect their light stick via Bluetooth by following simple setup instructions, ensuring seamless integration for live shows.

Additionally, the app includes a Self Mode, where users can customize the light stick’s color using a color wheel, and check the battery status directly through the app. Important pre-concert notices guide users on how to ensure proper functionality and performance, making this app a must-have for fans attending concerts.