Battery-Powered LED Glow Stick: Features 3 W RGB LEDs that emit 15 different shades of light Powered by 3 AAA batteries that provide up to 12 hours of glow time Can be reused by replacing the battery, more environmentally friendly than most glow sticks Two light-emitting modes: with stable monochromatic and color-changing light-emitting modes Choose from 15 colors , or switch to color-changing mode to match the atmosphere of a bar or live concert EASY TO OPERATE: The bottom of the joystick is equipped with next/previous buttons, so there is no need to cycle through all the colors to find the color you want; easy to operate and user friendly Lightweight and portable: only 25cm long, which means it complies with most venue regulations and fits easily in your bag The weight of only 77 grams means you can swing it all night Bottom seat belt ensures you don't lose your wand Add more flair to those atmospheric evenings with GOCTOS. Additional Details: 3 AAA batteries not included 3 cm in diameter and 15 cm in length (lit part) Visibility over 500 m on a clear night Can be used for concerts and celebrations, or as an outdoor signal or warning light