Features: Mini Lightweight: Compact size, handheld, you can put it in your pocket and easy to carry anywhere. Flip Design: With the cute cartoon pattern cover, it looks more attractive. It also protects the keys board. Screen Display: Clear reading display, 8-digit display, intuitive and easy to use. Energy Saving: its ButtonCellprovides long life and dependability. With clip, easy tocarry anywhere. Widely Used: Suitable for school, home and office use, for students from primary Schoolto high school in Maths and Physics , working persons, etc.