What the Heck Is ?

https://blogfreely.net/paleriirrg/10-best-mobile-apps-for-best-online-kpop-stores

K-pop Lightsticks: More Than a Glow<br/>K-pop lightsticks are a emblem of fandom, transforming concerts into glowing spectacles. In 2025, high-tech lightsticks from groups like NCT and ITZY feature Bluetooth and customizable lights