[DETAIL] Dear friends: We offer two calculators & writing tablets: C5 and S3. The two calculators & writing tablets have different functions. Please see the product function description below. Please choose to purchase according to your needs. We will send you the pictures of the options you purchased. Thank you! C5 Product Describe: 【Two functions in one】: A new innovative Smart calculator with LCD writing tablet, with 12 digits display, write while calculating, very convenient for recording. 【NO KEYPAD TONE】: Comfortable soft touch keys,quiet and noise-free. which brings you more comfortable touch feeling and a silent using experience. 【SMALL AND PORTABLE】: Clamshell design makes it easy to carry, perfect choice for business at work, accounting calculations, student calculations, home use, etc. 【REPEATED WRITING】 : No dust and ink, LCD handwriting,With an erase button, you can clear the full screen with a click. 【WHAT’S IN THE BOX】: 1x C5 Calculator Writing Tablet. S3 Product Describe: Solar Energy Scientific calculator is a combination of desktop calculator and writing board, it can effectively save your pen and paper, calculate and record what you want. 【Solar Energy Scientific calculators with Notepad】calculators and notepad are designed in one, you can take notes while calculating, improving study and work efficiency. The engineering calculator supports up to 10 digital calculations, the numbers are clear and readable, suitable for advanced and beginners. 【Repeatable writing】 No blue light LCD screen protects your eyes. Equipped with an ergonomic magnetic stylus on the back, allowing you to write/draw bright and clear lines. After use, press the erase button once to effectively reuse, reduce paper consumption, and achieve the goal of environmental protection. 【Silent design】scientific calculators uses high-quality silicone keys, which are quiet and soft, without touch sound, and will not interfere with others when used. Built-in 2 button batteries, 1PCS LR1120 calculator battery, 1PCS CR1220 LCD writing board battery, no need to recharge, it can be used for about one year. (If the battery is dead, you can replace the battery by yourself) 【Easy and portable】pocket calculator has a foldable design and weighs only 0.26 pounds, making it easy to put in a bag, pocket or purse. It is very suitable for work business, engineering calculation, accounting calculation, student physics calculation, home use, etc. S3 Product Functions: ●One click instant wipe The calculators for students has a one-click erasing function, you can write and doodle repeatedly. ●Large LCD screen The large LCD screen can display up to 10 digits, and the data is clear and easy to read, which is an ideal choice for study and work. ●Magnetic stylus The stylus is magnetic and can be attached to the storage slot to prevent loss. ●Pen pressure sensing detection function The stylus has a pen pressure sensing function, you can draw thick or thin lines at will according to the pen pressure. ● [ATTRIBUTES] - Hign-concerned Chemical: None - Power Source: Solar - Material: Plastic - Hign-concerned Chemical: None - Power Source: Solar - Material: Plastic - Applicable Battery Type: Coin Batteries - Model Number: 2 IN 1 Foldable Solar Energy Scientific Calculators&6 Inch Writing Tab - Max. Digits: 10 - Style: Graphic Calculator - Brand Name: VAORLO - Origin: Mainland China - Certification: CE - Features1: Portable 12 Digit Display 6 Inch Scientific Calculator With Writing Tablet With Stylus Pen Erase Button For Office Students Kids - Features2: Scientific Calculator With Writing Tablet 991MS 349 Functions Engineering Financial calculator For School Students Office Solar - Features3: Scientific Calculator with 240 Functions and 2-Line Screen Multi-purpose Portable Student Calculator for Math Teaching - Features5: 6.5 Inch Portable Calculator LCD Screen Writing Tablet Folding Scientific Calculator Tablet Digital Drawing Pad With Stylus Pen - Features6: VAORLO 2 IN 1 Foldable Scientific Calculators With 6 Inch Writing Tablet Digital Drawing Pad Graphing For Office Business School - Features7: 401 Computing Functions Solar Scientific Calculator With 6 Inch Writing Tablet Foldable Professional Calculators PK 991MS 991ES - Features8: 2 in 1 Foldable Scientific Calculators 10 Digits LCD Display With 6 Inch Writing Tablet Support Stylus Pen Erase Button Lock - Features9: Solar Scientific Calculator with LCD Notepad 417 Functions Professional Portable Foldable Calculator for Students Upgraded 991ES - Features10: Calculator for 991ES-PLUS Original Scientific Calculator 417 Functions For High School University Students Office Coin Battery - Features11: Foldable Solar Energy Scientific Calculators &6 Inch LCD Writing Tablet Drawing Pad Graphing For Office Business Student Teacher - Features12: Scientific Calculator 12-Digit Large Display Calculator with Notepad Foldable Calculator with Hand Writing Board for Daily Use