Each Yellow Construction Hardhat LED Keychain comes with batteries included and installed. Promote safety during the next promotional campaign with this safety ABS material helmet LED light-up flashlight keychain! This handy item features a high-intensity white LED that provides an impressive beam of light. There’s an on/off switch located at the bottom of the hat and it comes with three replaceable AG-10 batteries already installed. A great handout for labor unions, construction companies and more, it can be customized with an imprint of your company name and logo for maximum brand exposure.