✔Wireless & Rechargeable: Powered by Li Battery inside which can support the lamp for 5-6 hours. Recharge it by connecting the power charge wire to your computer or your mobile power adapter USB port. ✔Magic Light Color Changeable: Switching the light color by open and close the book light, Warm White, Cold White, and Warm Yellow 3 Color Options, Warm White Color for regular lighting, Warm Yellow Light gives great help to people to get into sleep. ✔Magnet Holding Design: Has Magnet in both top and bottom covers, which enables the book can be shaped as round and half circle,can be placed on your table, desk as reading light, or stick onto your refrigerator or magnetic wall as night light. ✔Portable and Fold-able: Fold-able as an old book,which enable it to be portable as a note book, can be easily put into your hand bag and briefcase, very light, no more than 350g, can be carried as camping light. ✔Environmental and Humanistic: All parts can be recycled,made of wooden cover and recycled paper, you even can write your diary on these papers,and gives you a good memory of your life when you light up it!