Portable and Flexible: The book light has a mini size and compact design making it very easy to carry. The sturdy and flexible (360 degree) gooseneck allows you to place the light anywhere you want. Comfortable Adjustable Brightness: Emits natural flicker-free light that 't hurt or strain your eyes. USB Rechargeable Battery: Super long battery life, with built-in rechargeable battery and USB charging cable, you can use the light on high for up to 3 hours after a full charge. Applications - Great for reading, working, studying, emergency use, suitable for study, , bedroom, living room, dormitory use, also great as a night light for baby's room.