This is the official BLACKPINK light stick, LIGHT STICK VER. 2. I used it at the 2023 World Tour Tokyo concert. I opened it up after a while to check the function, and the light still works. Batteries are also included (AAA). It's been stored in a closet, so there are some slight scratches and scuffs on the outer box. Please refrain from purchasing if you are concerned about this. As a bonus, I'll also include the FC member gift trading card case.