Desk Lamp, AVANTEK Eye-Care Clip on Reading Light with 3-Level Dimmer, USB Rechargeable, Touch Control TOUCH SENSOR: Adjusts 3 brightness levels by simply touching the switch on the base; satisfies your various lighting needs with easy operation and portability MULTIPLE USES: Sturdy, anti-slip base with clamp that opens up to 4 cm; firmly and easily attaches to music stands, desks, notebook computers and more; suitable for indoor reading as well outdoor use ECO-FRIENDLY LED: Offers natural and flicker-free light to effectively protect the eyes of you and your family FLEXIBLE GOOSENECK: Easy to twist and bend to any angle you need; easily provides illumination in all directions GREAT PORTABILITY: A built-in rechargeable battery makes the lamp cordless and portable; the lightweight and compact design allows it to be carried effortlessly wherever you go