4 different modes:1.red(quick flash) ,2.red(slow flash) ,3.neon-rotation mode,4.light off.Power supply mode button battery (included), shoelaces are on for about 60 hours, when the battery is exhausted, you can replace the battery with a new one. However, a special tool kit for unscrewing the battery box is required.Suitable for sneakers , casual shoes, sports shoes, running shoes, boots and skates etc.Easy to use.Press the white power button on the side for different light settings and also to turn off the power.Note: Before use, please remember to remove the insulating layer, because there is an insulating film between the two batteries. Be careful to tie the shoelaces with a little force, otherwise the LED wire inside will be torn, which will cause the light to not work