How do you delete the writing? Pressing the button as per instryctions doesn't work. Also the video showing how to retrieve the stylus is useless.

I have two of these calculators and both work fine. The big round button at the top (to the right side of the solar panel) will clear the writing. Maybe you have a faulty one. The pen just slides out.

how long the batteries in these LCD display last?

a year or more and it depends on how many times you use.

How do you change the battery? Mine arrived dead.

Unscrew the screw and unclip/slide it out.

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NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher

NEWYES 991ES Plus Scientific Calculator with Writing Tablet, 417 Function with Solar Battery, Professional Upgraded 991ES Plus Calculator Portable Notepad Back to School Supplies for Student, Teacher

Product ID: 533225881

Details

Brand
NEWYES
Calculator Type
Colour
Black
Display type
LCD
Material
Plastic
Model name
NY-CAL

📐417 advanced functions

📝6.5-inch writable tablet

🔋solar + replaceable battery

€ 62.30

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

📊 Elevate your calculations and notes—because precision meets productivity!

ECO FRIENDLY DUAL POWER - Solar panel paired with a replaceable CR2032 battery ensures uninterrupted performance wherever you go.
RESPONSIVE PREMIUM KEYS - Enjoy tactile, ultra-sensitive keys crafted from high-quality plastic for flawless input every time.
COMPACT FOLDABLE DURABLE - Protective magnetic closure and foldable design make it the perfect on-the-go companion for students and professionals alike.
417 FUNCTIONS FOR EVERY CHALLENGE - From matrix algebra to polar conversions, conquer any scientific problem with precision and speed.
ALL IN ONE CALCULATION NOTE TAKING - Seamlessly switch between complex computations and jotting down ideas on the integrated writing tablet.

The NEWYES 991ES Plus is a professional-grade scientific calculator featuring 417 advanced functions and a 6.5-inch writable tablet for note-taking. Powered by solar energy with a backup replaceable battery, it offers a responsive key design and a foldable, dust-proof case with magnetic closure, making it an ideal portable tool for students, teachers, and professionals seeking efficiency and versatility.

Specifications

ASIN	B0C64T6XFG
Best Sellers Rank	6,891 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 16 in Scientific Calculators
Brand	NEWYES
Brand Name	NEWYES
Calculator Type	Engineering/Scientific
Colour	Black
Country of Origin	China
Customer Reviews	4.6 out of 5 stars 223 Reviews
Display Type	LCD
Enclosure Material	Plastic
Item Dimensions L x W	16.2L x 1.8W centimetres
Item Weight	153 Grams
Manufacturer	NEWYES
Manufacturer Part Number	NY991ES
Model Name	NY-CAL
Model Number	NY-991ES Plus
Number of Batteries	1 CR2032 batteries required. (included)
Number of batteries	1 CR2032 batteries required. (included)
Power Source	Battery Powered
Power source	Battery Powered
Product Warranty	1 year
Screen Size	6.5 Inches
Screen size	6.5 Inches

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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€ 62.30

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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