Cordless design, free from A/C power cords and dangerous dangling cords Convenience LED light allows for work in dark areas Closed viewing window for easy glue stick checking, more constant temperature and dust free operation Perfect for toys and models, corkboards, DIY projects, school projects, quick repairs around the house, decorations, wood crafts and moreSpecification Model No. :GK-368 Power:7W/6V Preheat time:3-4 minutes Glue stick:Ø7.5mm Power source:1 .5V AA battery x 4 (not included) Running time:45 minutes(Alkaline type)