Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Calculators
Origin	-
Brand	Deli
Display Type	12-Digit LCD with Integrated Writing Board
Power Source	Dual Power (Solar + Battery)
Writing Board Size	4.5 x 3.2 inches
Material	ABS Plastic with Anti-slip Base
Key Type	Large, Responsive Keys
Functions	Basic Math, Percentage, Square Root, Memory
Dimensions	6.1 x 4.3 x 0.9 inches
Weight	7.2 ounces
Color	Matte Black

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Great concept, works well

The dual power feature ensures it never dies during tax season. The writing surface is smooth and erases instantly. Only wish the writing area was slightly larger, but it fits most quick notes.

Anonymous

Mar 29, 2026

Rating: 5/5

Student essential

As an engineering student, this saves so much space in my backpack. I can solve problems and draft diagrams right next to the calculation results. Highly recommend for campus life.

Anonymous

Mar 26, 2026

Rating: 5/5

No more sticky notes!

I used to cover my desk in sticky notes for quick calculations. This device replaced all of them. The erase button is responsive and clears the board completely every time.

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect for my accounting desk

I love having the calculator and a quick note pad in one device. The LCD writing board is great for jotting down temporary figures without wasting paper. Very sturdy build quality.

Anonymous

Mar 12, 2026

Rating: 5/5

Sleek and functional

The matte black finish looks professional on my office desk. Keys have a nice tactile feel, and the screen is bright and easy to read even in low light.

Anonymous

Mar 08, 2026

Rating: 4/5

Good value for money

Does exactly what it says. The transition between calculating and writing is seamless. Battery life seems excellent so far thanks to the solar assist.

5 FAQ

Q: Is the writing stylus attached to the unit?

A: Yes, there is a dedicated slot on the side of the calculator to store the included stylus pen securely when not in use.

Q: Does it have scientific functions like sin or cos?

A: This model focuses on financial and basic business calculations. It does not include advanced scientific trigonometric functions.

Q: Can the writing board save notes permanently?

A: No, the LCD writing board is designed for temporary drafts and quick notes. Once erased, the content cannot be recovered or saved digitally.

Q: How do I clear the writing board?

A: Simply press the dedicated 'Erase' button located near the top of the writing area to instantly clear the entire screen.

Q: What type of battery does it use if solar is not enough?

A: It typically uses one CR2032 coin cell battery as a backup power source when lighting conditions are insufficient for solar power.

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