BTS has launched the official Light Stick Version 4, marking a major upgrade after nearly six years since the previous MAP OF THE SOUL Special Edition released in 2020. The new light stick features a redesigned aesthetic, compatibility with new accessories like a cradle and parts, and enhanced convenience through a dedicated app and improved wireless control system. Key app features include venue maps, pairing booth locations, and the ability to verify proper pairing before concerts, ensuring synchronized lighting among fans. The app also records concert attendance in a history section. The light stick offers various lighting effects, including a new 'Color Shaking' feature that randomly changes colors, which users can save and customize. It can also function as a mood lamp at home using the cradle. Wireless control support will continue on previous versions until the Las Vegas 'ARIRANG' concert on May 28, 2026, after which only Version 4 will support wireless control starting June 12, 2026, during the Busan concert. Fans can look forward to purchasing details soon, as the upgrade aims to enhance fan experience during BTS's upcoming world tour.