Book Lamp, 9 LED Adjustable Brightness Book Light with Flexible Arm, Warm LED Night Light for Kindle Light Clip Bed Reading Lamp Bookmark Light Desk lamp Computer Lamp USB 9 bright LEDs, built-in Rechargeable Lithium Battery. AC adapter and USB cord included. Widely Used: suitable for music stands, pianos, orchestra pits, desks, tables, dark clubs, etc. 2 IN 1: it can stand on desk with the base as normal desk lamp and also available to clip almost anywhere and any angle with its anti-skid clip. One Button Control: easy access power switch behind to power on/off and control two brightness levels. Portable and Lightweight: take it with you while traveling, it is easy to carry and can be powered by built-in battery.