... NEW style-rechargeable desktop Foldable LED book lamp with calendar clock displaying time,date and week ... battery inside ( 3.7V ,1000mA)Packing details With accessories 1x Foldable LED book light1x USB cable1x AC ... touch button to turn on/off the book light With displaying time, date and week, temperature,temperature displaying ... 43.8cm rechargeable desktop Foldable LED book lamp with digital alarm clock