Thank you for viewing. I used it once at last year's concert. There is no instruction manual, but holding down the center button in photo ① turns it on and off. Pressing either the left or right button will change the color to white and 7 other colors. The batteries require 3 AAA batteries, but they have been removed for safety reasons. Please understand. We do not accept discounts, returns, or refunds after purchase. Thank you for your understanding.