Portable and Rechargeable: The LED desk lamp can be powered by USB or a built-in battery. With the included USB cable connecting the LED desk lamp to your computer's USB port, mobile power supply, or any USB wall adapter (not included), it charges up. Elegant Design and Flexible Gooseneck: 360-degree adjustable, flexible gooseneck tube to adjust height and angle, easily bends into a compact position. It is also very convenient to carry around. Excellent Eye Protection: 8 LED beads, no frequent flash, no dizziness, no shadow, and natural light, gentle on your eyes when reading, working, or writing. 2-in-1 Design: It is not only a desk lamp but also a phone holder. The design of the desk lamp's base can be used as a phone holder. Applicable Environment: It is small and lightweight, foldable and portable, which means you can easily take it wherever you go. Suitable for college dorms, bedrooms, and office reading, it can also be a night light for children.