Lightweight and compact in design. USB cable included to charge lamp through laptop, or takes 3 x AAA batteries (batteries not included). Flexible, yet sturdy goose neck can be adjusted and rotated 360 degrees, to effortlessly cast light where you need it. Touch Sensor Control: Press and hold the sensor to navigate through 3 levels of brightness (low, medium, high). Eye Friendly LED lighting: Energy-efficient and eye-caring LED creates a uniform non-flickering light which won't hurt your eyes.