Environmental friendly: it just needs USB rechargeable instead of batteries. All it need it a USB cable that can connect to computer or the charger. When you open its cover, it will shine until you close it again.Recyclable material: made of environmental wooden applied with lasing cutting. It is a perfect present for anyone you care and the best lamp for home and office decor.Folding: it can be folded right back on itself, which means it can cast a light around 361 degrees. Place it anywhere and don't need to worry about bother of wire.Simulation Book page with built-in White LED light, just open it, the light will work automatically. 3 colors changeable: warm white/colorfulCompact book light can be taken with you on the go and works without cords. Use it outdoors or indoors to provide that extra amount of light that you need.