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The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work. \u003cstrong\u003e👉NOTE: \u003c\/strong\u003eOnly Unlock the LOCK KEY will the writing area and the erase button work\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiview:\u003c\/strong\u003e display shows 4 calculations at the same time on screen, greatly improves computational efficiency\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Power Solar Panel \u0026amp; Coin Battery:\u003c\/strong\u003e The replaceable coin battery is built in this scientific calculator. It is also powered by solar energy so you don't need to worry about battery depletion\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Drop Body with High Durability and Portable:\u003c\/strong\u003e 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\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat Will You Get?: \u003c\/strong\u003e991ES scientific calculator*1,instructions*1,exquisite packing box*1,packing case*1\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ROATEE","offers":[{"title":"Black","offer_id":61424114958666,"sku":"1000","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6563\/8474\/files\/ES_207f6fe2-1b41-40cc-8db5-4c7aaf511e47.png?v=1749529290"},{"product_id":"roatee-rechargeable-991es-max-417-functions-scientific-calculator-with-writing-padblack","title":"ROATEE Rechargeable 991ES MAX 417 Functions Scientific Calculator with Writing Pad(Black)","description":"\u003col\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e991ES MAX Multifunctional Scientific Calculator:\u003c\/strong\u003e ROATEE business calculator features 417 functions, deal For: General math and science, Pre-Algebra, Algebra 1 and 2, Geometry, Statistics and regression calculations, Calculus, fractions, decimals, Calculations involving specific number 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\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eScientific Calculator with Notepad: \u003c\/strong\u003eThis 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\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eMultiview:\u003c\/strong\u003e display shows 4 calculations at the same time on screen, greatly improves computational efficiency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eDual Power Solar Panel \u0026amp; Rechargeable: \u003c\/strong\u003eThe rechargeable battery is built in this scientific calculator, reduces battery replacement frequency, eco-friendly. 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It is also powered by solar energy so you don't need to worry about battery depletion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eWhat Will You Get?: \u003c\/strong\u003e82MS scientific calculator*1,instructions*1,exquisite packing box*1,packing case*1.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ROATEE","offers":[{"title":"Default Title","offer_id":50847108759882,"sku":"","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6563\/8474\/files\/82MS_fe55fee0-33e7-4d4e-a7b0-483ac3680969.png?v=1750391041"},{"product_id":"roatee-rechargeable-991ex-552-functions-scientific-calculator-with-writing-padblack","title":"ROATEE Rechargeable 991EX 552 Functions Scientific Calculator with Writing Pad(Black)","description":"\u003col\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e991EX Scientific Calculator: \u003c\/strong\u003eROATEE business and school scientific calculator have 552 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 calculations, TABLE, VECTOR, SOLVE, Biology, Chemistry so on and it has memory function calculation more user-friendly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eScientific Calculator with Notepad:\u003c\/strong\u003e This scientific calculator for school and business intergrates calculation and notebook with a stylus pen. 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The durable, phone-grade TPU material protects your calculator from drops and harsh construction environments.\u003cbr\u003e\u003cstrong\u003e* 200+ Engineer Functions:\u003c\/strong\u003e For Mixed Dimension Calculations and Conversions, Area \u0026amp; Volume, Brick and Block, Concrete, Boards, Flooring, and Wall Stud, Drywall Sheet Count, Circle Area, Circumference, and Arc Properties, Compound Miter, Polygon Tiling, Roofing Material, Foundation Correction, Right Angle and Rafter, Roof Pitch and Angle Conversions, Common Rafter Length, Common\/Hip\/Jack Rafter and Spacing, Stair Layout, Rake Wall Calculations.\u003cbr\u003e\u003cstrong\u003e* Special Design for Engineering Professionals: \u003c\/strong\u003e45 fast rebound hard PC buttons are reasonably distributed, more than other engineering calculator. It supports custom parameters, and has 3 storage registers for more convenient and smooth use.\u003cbr\u003e\u003cstrong\u003e* Large Screen \u0026amp; Energy-Saving: \u003c\/strong\u003eWith a 2.6-inch 12-digit large screen reduces errors, more clarity and lager than other calculators. Auto off after 13 mins ldle to save power.\u003cbr\u003e\u003cstrong\u003e* All-in-One Fit: \u003c\/strong\u003eIdeal for builders, carpenters, concrete workers, contractors and DIY home renovators, roofers, architects, interior decorators, construction estimators, engineering students, etc.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 500pt;\" width=\"667\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"mso-width-source: userset; mso-width-alt: 4192; width: 98pt;\" width=\"131\"\u003e \u003ccol style=\"mso-width-source: userset; mso-width-alt: 17152; width: 402pt;\" width=\"536\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eButton\u003c\/td\u003e\n\u003ctd style=\"border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003e45 PC buttons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; border-top: none; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003e6.73*3.70*0.81 in \/ 17.1*9.4*2.06 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; border-top: none; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003e2.6 inch 12 digits display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; border-top: none; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003e205g (with case)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; border-top: none; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eButton Battery\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003e2*LR44\/AG13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; border-top: none; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eFunction\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003eOver 200 engineering functions for construction math and material estimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\" height=\"19\"\u003e\n\u003ctd style=\"height: 14.25pt; border-top: none; width: 98pt;\" width=\"131\" align=\"left\" class=\"xl66\" height=\"19\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"border-top: none; border-left: none; width: 402pt;\" width=\"536\" align=\"left\" class=\"xl67\"\u003eConstruction pros, contractors, architects, and renovators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ROATEE","offers":[{"title":"Black","offer_id":53550359511370,"sku":"AC0601","price":49.99,"currency_code":"USD","in_stock":false},{"title":"Grey","offer_id":53550359544138,"sku":"AC0602","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6563\/8474\/files\/10_c1701093-cdfb-48bc-8efd-a75c105adf10.jpg?v=1763712147"},{"product_id":"roatee-991ms-349-functions-scientific-calculator-with-writing-pad","title":"ROATEE 991MS 349 Functions Scientific Calculator with Writing Pad","description":"\u003cp\u003e\u003cstrong\u003eCalculator Writing board combines a calculator with a writing board, it has a wide range of applications to meet a variety of needs. The handwriting board life is 50,000 times.\u003c\/strong\u003e\u003cbr\u003e• 349 calculation function \u0026amp; 4 calculation modes (COUNT, CMPLX, STAT, REG)\u003cbr\u003e• 2-line display, lcd screen, 6.5 inch writing area\u003cbr\u003e• Ultrasonic process shell with durable and shatterproof plastic\u003cbr\u003e• Plastic buttons are more sensitive and precise than silicone key. High-end quality \u0026amp; texture material\u003cbr\u003e• Dual power. Replaceable button battery \u0026amp; solar panels, long battery life\u003cbr\u003e• Folding design, portable, handy size. Ideal for junior \u0026amp; high school students, college students and professional researchers\u003cbr\u003e• Come with a 6.5 inch writing tablet and a pen. One click to erase, lock key to protect notes\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"667\" style=\"border-collapse: collapse; width: 500pt;\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"131\" style=\"mso-width-source: userset; mso-width-alt: 4192; width: 98pt;\"\u003e \u003ccol width=\"536\" style=\"mso-width-source: userset; mso-width-alt: 17152; width: 402pt;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr height=\"19\" style=\"height: 14.25pt;\"\u003e\n\u003ctd height=\"19\" class=\"xl64\" width=\"131\" style=\"height: 14.25pt; width: 98pt;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd class=\"xl65\" width=\"536\" style=\"border-left: none; width: 402pt;\"\u003eLCD Liquid crystal panel + Durable ABS Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"19\" style=\"height: 14.25pt;\"\u003e\n\u003ctd height=\"19\" class=\"xl64\" width=\"131\" style=\"height: 14.25pt; border-top: none; width: 98pt;\"\u003eSize\u003c\/td\u003e\n\u003ctd class=\"xl65\" width=\"536\" style=\"border-top: none; border-left: none; width: 402pt;\"\u003e162*81*17.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"19\" style=\"height: 14.25pt;\"\u003e\n\u003ctd height=\"19\" class=\"xl64\" width=\"131\" style=\"height: 14.25pt; border-top: none; width: 98pt;\"\u003eWriting Area\u003c\/td\u003e\n\u003ctd class=\"xl65\" width=\"536\" style=\"border-top: none; border-left: none; width: 402pt;\"\u003e6.5 inch writing tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"19\" style=\"height: 14.25pt;\"\u003e\n\u003ctd height=\"19\" class=\"xl64\" width=\"131\" style=\"height: 14.25pt; border-top: none; width: 98pt;\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"xl65\" width=\"536\" style=\"border-top: none; border-left: none; width: 402pt;\"\u003e153g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"19\" style=\"height: 14.25pt;\"\u003e\n\u003ctd height=\"19\" class=\"xl64\" width=\"131\" style=\"height: 14.25pt; border-top: none; width: 98pt;\"\u003ePower\u003c\/td\u003e\n\u003ctd class=\"xl65\" width=\"536\" style=\"border-top: none; border-left: none; width: 402pt;\"\u003eCR2032 battery \/ Solar energy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ROATEE","offers":[{"title":"Default Title","offer_id":53550397718858,"sku":null,"price":18.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6563\/8474\/files\/1-4.jpg?v=1765268118"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6563\/8474\/collections\/670_2_cb3306ae-09a7-4a7d-85f4-41571d2caf30.png?v=1759133296","url":"https:\/\/www.roatee.com\/ko\/collections\/writing-calculator.oembed","provider":"ROATEE","version":"1.0","type":"link"}