Three modes: fast LED flashing, flashing, and constant light. Plus, it's USB rechargeable. Perfect for commuting! For jogging, walking, running, and walking your pet... To prevent nighttime accidents, please have your children wear them. Great for kids walking home from cram school or club activities at night. A must-have for those weeding along the road. You can't be seen by drivers when you're crouching in the dark. You can feel safe having your children wear them when camping. In some places, it's so dark that even adults feel scared! Being able to visually confirm "I'm here!" "I'm here!" "I'm here!" leads to accident prevention. Please note that there may be some measurement error. Discounts are not available. #ledkyotoshi