15 Color Super Cool Performance Props Led Flashing Glow Sticks For Concert Party Specifications: 1.Environmentally Friendly 2.TThe glow stick is powered by 3 AAA batteries and can be used for up to 12 hours. 3.It is more environmentally friendly and practical than traditional single-use glow sticks that use hazardous fluorescent materials. 4.Can be used for birthday parties and family gatherings, even when there is a power outage 5.Sometimes some warnings are also very useful, he is very versatile and easy to carr Specifications Material: ABS/PS Light source: 3 W 5050 LED Working time: Approx. 4-12 hours (depends on glowing mode and actual use) Size: 35 mm x 250 mm Visible range on clear nights: 500 m Battery:3 AAA(Not included) Easy to Operate To turn on the light: Press the left button (grooved button) or right button. To turn off the light: Hold the left or right button for about 3 seconds. To change pattern: Press the left button to move to the next pattern and the right button to go back to the previous pattern. To enter color changing mode: Press the right button when the light is off. When the unit turns on, the light will begin as red. Package Contents 1 x Glow Stick(The product does not contain batteries)