EASY TO CONTROL: The desk lamp has an adjustable arm so you can direct the light where you need it. With the included 3M sticky pads, it can be hung anywhere as a wall light. Eye Care and Pocket Size: Soft and comfortable lighting prevents eyestrain. Made of slim, stylish, anodized aluminum, this desk lamp folds up as small as an iPhone 6s Plus for easy portability. USB Charging: Built-in rechargeable battery and USB port, it can be easily charged from DC adapter or even power bank through the micro USB charging port. When fully charged, up to 4 hours. ENERGY SAVING: Uses only 3 watts of power, but produces 150 lumens of light, made from durable LED bulbs that ensure thousands of hours of life. MULTIPLE USES: Since the desk lamp can be folded, you can take it anywhere and use it, perfect for office, school, home and library. In addition, the lamp holder can be used as a mobile phone holder, giving you an easy choice between work and study. Size: 200*70*10MM Colour: Black Packing list: 1pcs