Desk Lamp,Walkas Lamp with Message Board Rechargeable LED Reading Lamp Touch Sensor-Green It is so romantic that you can leave the love message to your lover on the message board. Adjustable Brightness:The LED brightness is adjustable by touch and retains the last brightness setting-even after you turn it off. Therefore, it is easy for every one to use it. Built-in Environmental and high energy saving Battery: Keep it charged on your desk and take it with you around the house if you need a lamp when the power goes out. It is rechargeable in usb, there is 3 brightness switch for it, the light can be adjustive. The Highlighter after drawing can be arbitrary after erasing repeated use.