1Easy USB Charging: Built in 2500mAh polymer lithium battery, you can carry it with you without a power plug. Charging for 2 hours, the maximum brightness can work continuously for 6.5 hours. Compatible with wall chargers, power banks, computers, car chargers, etc. 2Adjustable Lights: 5 level brightness adjustment. Its lighting is perfectly even, and there is no flickering. Advanced eye protection technology, so that you no longer feel eye pain after long hours of work, relieve eye fatigue. 3Large for Working: 340x249x18mm, slightly larger than A4 paper, which is easy to carry when going out. Comes with a Type C USB cable, and the pad power port is reinforced to ensure long term use. There are accurate scales on the board, 30x21cm, you can easily draw 2D architectural sketches without a ruler. 4Broad Application: LED copy board is great for sketch drawing, sewing engineering, scanning negatives, weeding, stencil printing, 2d animation, calligraphy, embossing, scrapbooking, tattoo transfer, stained glass, etc. It can also be used as birthday and Christmas gifts for family and friends. 5Simple Carrying: Designed to have a light weight as well as a compact size, the convenient carrying will largely facilitate your outdoor working.