3 Brightness Modes: With just one touch switch, you can easily choose 3 different brightness modes: warm white (3 warm LEDs on), cool white (4 white LEDs on) and mixed (all 7 LEDs are on), suitable fordifferent reading environments. 360Flexible Gooseneck and Mini Size: Upgraded 360flexible silicone gooseneck allows you to adjust the light to any angle you want, giving you omnidirectional illumination at 360. Its mini size and designcompact also make it easy to carry. LONG WORKING TIME and POWER INDICATOR: Built-in 600mAh rechargeable lithium battery provides up to 12 hours lighting (under low light settings), only 2 hours for full charge, you allowingenjoy longer wireless playback time. With the battery indicator, you can easily see the remaining power and charging status. Smart USB Charging: The bedside lamp can be powered by any USB charger, such as USB laptop, power bank, mobile phone adapter, etc. Using the supplied cable, the lamp can becharged when the battery is exhausted. Multiple Applications: The clip measures up to 1.57 inches, ideal for bedside, books, laptops, shelves, etc. The clip has a non-slip pad inside to protect the book light and prevent it from slipping.