Modern special led electronic pet collarSpecifications for led electronic pet collar: Materialnylon webbing,Fluorescence webbing,super bright LED,Optic Lighten FiberFlashing ModeQuickly Flashing / Slowly Flashing / Lighten up (controled by the button)LED ColorRed/Yellow/Orange/Blue/Green,white,pink,purpleSizeS,M,L,XL batteries time60-80 hours,..