DIMMABLE TOUCH CONTROL: One Touch makes the light level step forward. Just touch the back of the lamp to switch the light: Off - Gentle Light - Normal Light - Hard Light - Off | FLEXIBLE TUBE: Made of Magnalium Alloy with soft material covered, the tube of the lamp is super easy to be adjusted. 360-degree angle available | 14 LEDS FOR GREAT LIGHTING: 14 LED Beads are in the lamp to provide enough light for you to read, write or use it in other essential occasions | 2 COLORS, PORTABLE: We provide Black & White in this set for you to match different USB devices. They are also lightweight and small so you can carry them to anywhere you want | EASY-USE, WORRY-FREE: This USB LED Lamp is easy to use. It is compatible with almost all USB devices. If you have any questions, feel free to contact us to get support