This compact and versatile book light is perfect for travelers, students, or home. When open it can light up any book or magazine format, even your laptop! Once folded it can be used as a handy flashlight. This lightweight travel friendly book light is great for autos, airplane, or backpacks. Uses two AAA batteries (not included). Has free standing or clip-on, stands 4 in. tall x 3/4 in. wide. clip is 2 1/4 long x 1/4 wide.