Dual Head Modern DesignThe table lamp adopts a double-head design.The left and right head can be unfolded into a straight line, with the 160-degree swing angle in up and down direction, providing you with a larger lighting coverage and angle. Foldable design makes it effectively reduce writing shadows. 3 Lighting Modes and Stepless DimmableWith a sensitive touch switch, you can freely switch 3 lighting modes--warm white, natural white and cold white. In each mode, the brightness can be adjusted to suit your various lighting needs. Besides, the brightness can be remembered when you choose this mode again, which can save your time to adjust the brightness one more time. Rechargeable Battery Operated Desk Lamp Built in high quality 4000mAh battery, you can take your table lamp to anywhere you need the light. It can last Max 15 hours lighting in lowest brightness. It comes in USB cable (AC Adapter is not included), can be powered by USB Charger, Computer, Power bank, Phone Adapter, etc. You can use anytime, anywhere. Eye Protection Portable Study LampSmall Desk Lamp double-swing-arm lamp has high quality 32 LEDs to offer flicker-free, non-shadow, flicker-free, uniform lighting. Perfect for working, reading, study, webcam Zoom and soft light allows you to read in bed without disturbing others.