[3 colors, 9 Brightness Levels]Book reading light have White, warm white, warm 3 colors, and 30%, 60%, 100% brightness available, allows you to choose the perfect brightness to keep your eyes comfortable, enjoy your time reading in bed without disturbing your roommate. Short press to switch the colors, long press to switch the brightness. Brightness memory function, it will remain the brightness level you before. [USB Rechargeable]Book reading light have no additional cables or batteries needed, easily with built-in USB, directly plug it into your computer, power bank, adapter, car charger, or USB outlet for recharging. 1.5 hours to charge and it will lasts up to 8 hours(at brightest setting). [Flexible Lighting Angle]Book reading light completely come with flexible design, the LED lens can be swivelled 90counter-clockwise and clockwise, and 45downward; 315 flexible holder bends to any angle for your best viewing. No need constantly repositioning the light. [Compact & ]Book reading light come with a small size design, 1.3 ounce, small and , perfect for clipping on a book when nighttime reading, and can be completely folded flat and slim, portable for reading on airplane, train, or backseat of car when travelling, knitting, camping and repairing. [Multi ]Book reading light can be also used as a bookmark, or mini flashlight when power blackout. Perfect LED reading light for paperback books, magazines, bedtime stories etc. Great your kids, friends and family. Colour: blue Material: plastic Size: 10.5x4.6x1.3CM Package Contents: 1 * USB Rechargeable Book Light Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.