This hat is made from soft woolen yarn and features 7 multicolor LEDS (2 green, 3red, and 2 blue).;Wear our comfortable white hat makes you more warm and lovely in this winter.;Colorful LED lights can enhance the festive atmosphere also have Lighting effect.;One Size Fits Most.Hidden battery box and switch label makes the scarf is not only beautiful and easy to use.;Batteries are included and installed, you will easy to replace CR2016 button-cell batteries when they run out.Please note the hat only has lights on 1/2 of it.