LED Book Light, **USB Cable included**, LED Clip Light, LED Desk Light, LED Music Light, Flexible Neck Reading Light Easily clamps onto your book or lap desk. Can be operated with 3x AAA batteries and/or with the **included** USB to 3.5mm Barrel Jack. Can be used as a desk light and base is firm enough to hold stable, while not blocking the light with your head. Long flexible Goose-neck to focus on your work not being disturbed by your shadow. Folds easy and fits compact Storage