About This Item

991ES MAX Multifunctional Scientific Calculator: ROATEE business calculator features 417 functions, deal For: General math and science, Pre-Algebra, Algebra 1 and 2, Geometry, Statistics and regressioncal culations, Calculus, fractions, decimals, Calculations involving specificnumber systems (BASE-N, binary,octal, decimal,hexadecimal), Complex number calculations, EQN, MATRIX, TABLE, VECTOR, SOLVE, Biology, Chemistry so on and it has memory function calculation more user-friendly
Scientific Calculator with Notepad: This scientific calculator for school and business intergrates calculation and notebook with a stylus pen. The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work. 👉NOTE!Only Unlock the LOCK KEY will the writing area and the erase button work
Multiview: display shows 4 calculations at the same time on screen, greatly improves computational efficiency
Dual Power Solar Panel & Rechargeable: The rechargeable battery is built in this scientific calculator, reduces battery replacement frequency, eco-friendly. It is also powered by solar energy so you don't need to worry about battery depletion.
Anti-Drop Body with High Durability and Portable: The body of this scientific calculator undergoes rigorous quality tests. Due to the design of anti-drop body, no need to worry about the damage by accidentally falling and it has only weighs 5 ounces can be easily put in your pocket, which is convenient for business and school
Conversion of Fraction and Decimal: You can change the results through the key 'S⇔D'; Or you can configure calculator setting: 1. Press the button 'SHIFT'. 2. Press the button 'MODE'. 3. Choose 1 or 2 to set the mode of fraction or decimal. 【MthIO for fraction, LineIO for decimal】
Usage Tips:Our calculator’s default initial input/output mode is MathI (input) / MathO (output). This is designed to preserve data integrity when dealing with decimals and to display expressions in the same way as textbooks (Natural Textbook). If you would like to switch the output to the mode you mentioned, you can do so by pressing: [Shift] → [Function] → [1] (select input/output mode) → [2] (decimal output mode) or [3] (linear output mode) For more operations, please refer to the attachment or the manual.
What Will You Get?: 991ES MAX scientific calculator*1,usb-c charging cable*1,instructions*1,exquisite packing box*1

Product Details

Brand	ROATEE
Color	Pink
Calculator Type	Engineering/Scientific
Power Source	Battery Powered
Screen Size	6.2 centimeters

Product Description

Product description

ClimatePartner Carbon Neutral Certified

Trusted Environmental Standards

Through ClimatePartner, our carbon management system has achieved globally recognized certification, ensuring our environmental efforts are transparent, credible, and ongoing. Choose us with confidence, knowing every dollar spent helps protect the planet.

From the Brand

Reliable & Innovative

ROATEE is dedicated to creating high-quality calculators designed to support students and professionals. We focus on providing educational tools that help students achieve excellent results while meeting the practical needs of users. We are committed to sustainability, ensuring that they are not only practical and efficient, but also environmentally responsible.

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High school & College

High school & Middle school

Middle school

Why Choose Us

Our scientific calculator for school and business intergrates calculation and notebook with a stylus pen. The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work

About Product Quality

The body of this scientific calculator undergoes rigorous quality tests. Due to the design of anti-drop body, no need to worry about the damage by accidentally falling and it has only weighs 5 ounces can be easily put in your pocket, which is convenient for business and school

Go Green Now

Our products are ClimatePartner Carbon Neutral Certified

991ES MAX 417 Functions Scientific Calculators 4-Line Display with Notepad

991ES MAX 417 Functions Scientific Calculators 4-Line Display with Notepad