The Energizer Keychain Light with Touch Tech Technology combines the latest patented technology for easy, intuitive use. With the switchless innovation of touch tech, users get instant illumination just by grasping the light. Just release your grip when done using, and it smoothly turns off the light. It makes sure that your light is never left on accidentally and helps extend battery life. This technology makes this keychain light very convenient and easy to use. Energizer Touch Tech Key Ring Torch