Functions:1.Creative USB message board lamp, a great and practical decoration light for home.2.Transparent acrylic board material, with amazing light effect.3.The LED bead is warm light color, can add warm atmosphere.4.This board lamp is with a free pen as a gift, you can leave message with this pen.5.The messages are easily removed by the eraser on pen top.6.USB input way, very convenient power way, you can connect it with power bank, adapter, laptop, etc.Feature:Material: Acrylic, LED, Electronic ComponentColor: Board: TranparentBase: Round/SquareLight Color: WarmSize:18*13*5cmPower Way: USB InputVoltage: 5V 1APackage Details:1*Acrylic Board1*Base1*PenNotes:Please allowed 1-3mm differences due to manual measurement, thank you