Features:1.240 Functions: 1 Calculator meets so many calculation requirements for maths, algebra, fractions, trigonometry , statistics, accounting etc.2.Multifunctional mathematics calculator: can use to calculate advanced functions.3.High quality material: durable for use and anti fall.4.Replay Key: Without having to restart the entire process, the special feature of replay allows to go back and change the individual numbers of the equation. In addition, your previous formula will be stored for calculate again5.Protective Shell: Protective hard case prevent the calculator from falling of accidentally6.Multipurpose: Apply to school, office or engineering, business, and more. Its practicability could meet the needs of various digital fields, and ideal for student.7.2-Line Screen: Large size screen and 12-digit display with simultaneous display of input and calculation results, which is very practical and comfortable Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effectDescription:Material: PEBattery: Built-in button batterySize:as shownPackage List:1x Scientific CalculatorNote: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.