Ships from Hongkong. Solar Power Calculator. The screen is LED and it is touch screen. It's clear and convenient. Suitable for button cell. Cell is not included. It will be powered off automatically when you not use it within 5 minutes. Lovely design and very practical to use in your daily life. Light weight and mini style will be portable in your bag or pocket. It can be used as school/office/home calculator. Lovely, special and functional. Product Dimensions is about 12*8*0.5CM. Package include 1* mini solar calculator. Suitable for the button cell. (Battery is not included.) It's mini shaped lovely design enable you can take it everywhere. Easy to carry in your bag and pocket and very practial. 8 digital with basic calculating function. Clear LED screen and touch screen. Solar powered, energy saving and environment friendly. Widely used in the office , home or even inside your handbag. make your life easier and organized. Very nice and sweet gift for colleagues, childrens and friends.