Be deliciously devilish in Color Change LED Devil Horn Head Bands! These horns are large, with awesome prism cuts. The horns will project fabulous LED colors and designs! This item does not have a still light function; they blink and flash constantly. To activate your Imprinted Color Change LED Devil Horn Head Bands, slide the switch above the battery pack to the ON position. These horns are one size fits most. Four AG13 batteries are included and replaceable.