【New, Unopened】 Approved by JR Central and JR West Train Co., Ltd. 923 Series Doctor Yellow Strap This is a lighting strap, which is a little different from a regular light that just shines. ■The batteries included initially are likely low-power test batteries. Since it's unopened, I cannot confirm whether the light works, but if it doesn't, please replace the batteries with the specified type. New and unopened. Please check the photos for the condition and consider purchasing.