Mechanical Switch Calculator with Big Buttons
#24
DANRONG

DANRONG Mechanical Switch Calculator with Big Buttons

Rating

Model: CA17
$7.99(incl. tax)Amazon price as of 2025-09-29
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Product Overview

The DANRONG Mechanical Switch Calculator features mechanical switch buttons for a fast and precise response, similar to a mechanical keyboard. It has a large 12-digit, 4-inch LCD display with a 15° tilt for optimal visibility. Powered by solar and one AAA battery, it automatically shuts off after 10 minutes of inactivity. The calculator has a typewriter-style design with retro rounded keys and is made of durable ABS material. It's suitable for schools, offices, homes, and stores.

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Product Specifications

Digit Displayed
12digits
Power Source
Solar Powered, Battery Powered
Display Type
LCD
Key Type
Plastic
Dimensions
4.3 x 6.2 x 0.04 inchesmm
Weight
5.4 ouncesg
Memory Function
No
Tax Calculation
No
Percentage Calculation
No

Size & Weight

Weight
5.4 ounces
Hight
0.04 inches
Width
4.3 inches
Depth
6.2 inches

Features

Tax Calculation Function

This calculator does not include a dedicated tax calculation function. Users will need to manually calculate tax amounts using the basic arithmetic functions. This function is useful for quickly calculating the total price including tax when shopping or managing finances, but it is not available on this model.

Memory Function

This calculator does not feature a memory function for storing and recalling numerical values. The memory function is useful for storing intermediate calculation results or frequently used numbers, simplifying complex calculations that involve reusing the same numbers repeatedly, but it is not available on this model.

Square Root Calculation Function

This calculator does not have a square root calculation function. The square root function is useful for calculations in DIY projects or schoolwork where square roots are required, eliminating the need to manually calculate square roots or use external tools, but it is not available on this model.

Percentage Calculation Function

This calculator does not include a percentage calculation function. The percentage calculation function is useful for easily calculating percentages such as discounts or profit margins when shopping or analyzing sales data, avoiding the need for complex manual calculations, but it is not available on this model.

Sign Change Function

This calculator does not have a sign change function. The sign change function is useful for quickly switching the sign of a number from positive to negative or vice versa, simplifying correcting entry errors or performing calculations with both positive and negative numbers, but it is not available on this model.

Decimal Place Setting Function

This calculator does not offer a decimal place setting function. The decimal place setting function allows you to specify the number of decimal places displayed in the calculation result, which is useful when you want to avoid displaying unnecessary digits, but it is not available on this model.

SHOPSTAFF Rating Score

#24
Ranked #24 out of 83 products in Category
4.0
Overall Rating

This calculator offers a unique mechanical switch experience at a budget price. While it lacks advanced functions, its distinctive design and tactile feedback make it suitable for basic calculations in a fun way. Durability might be a concern with long-term use.

Display Size and Readability
4.5
The 4-inch LCD display is large and clear, making it easy to read numbers from different angles. The 15° tilt design enhances visibility and reduces eye strain, providing a comfortable viewing experience for prolonged use. The large digits are beneficial for quick and accurate calculations.
Key Size and Tactile Feedback
4.3
The mechanical switch buttons provide a tactile and auditory feedback, similar to a mechanical keyboard, which enhances the typing experience. The retro rounded keys are designed to fit comfortably in your hands, reducing fatigue during extended use. The key layout is well-spaced and easy to navigate.
Basic Functionality and Features
3.5
This calculator offers basic mathematical functions such as addition, subtraction, multiplication, and division. While it lacks advanced features like memory function, square root, or tax calculation, it covers the essential functions needed for everyday calculations in schools, offices, and homes.
Power Source and Battery Life
4.0
The calculator is powered by both solar and one AAA battery, providing a reliable power source in various lighting conditions. The auto shut-off feature after 10 minutes of inactivity helps conserve battery life. It is recommended to insert a AAA battery for consistent and accurate use.
Durability and Build Quality
4.0
Made of durable ABS material, the calculator feels good in your hand and is lightweight, making it suitable for both desktop and handheld use. The mechanical switch buttons are designed for fast and precise key pressure. However, the overall durability for long-term use is moderate.
Size and Portability
4.5
With dimensions of 4.3 x 6.2 x 0.04 inches and a weight of 5.4 ounces, this calculator is portable and easy to carry in a bag or pocket. Its compact size makes it convenient for students and professionals on the go, while still providing a large display and comfortable key size.
Manufacturer Reliability and Warranty
3.0
DANRONG is a manufacturer dedicated to providing customers with study aids and office products. As a relatively new brand, its reliability and warranty terms may not be as established as more well-known brands, so long-term reliability is uncertain.
Cost Performance
4.5
At a price of $7.99, this calculator offers excellent cost performance. It provides a unique mechanical switch experience, a large LCD display, and dual power supply at an affordable price, making it a cost-effective option for basic calculations.

Brand & Manufacturer Details

DANRONG
DANRONG is dedicated to providing customers with a variety of classic or trendy styles of study aids and office products.

Key Highlights

  • Mechanical switch keys
  • Large LCD display
  • Affordable price

Considerations

  • Battery not included
  • Avoid dropping to prevent damage to mechanical switches
  • Not suitable for complex calculations

Recommended For

  • Students
  • Home users
  • Those who appreciate retro designs

Not Recommended For

  • Engineers
  • Accountants
  • none in particular

Suitable For

  • School
  • Home
  • Basic office tasks

Not Suitable For

  • Complex engineering calculations
  • Advanced financial analysis
  • Scientific research

Frequently Asked Questions (FAQ)

Q.I'm hesitant to buy this calculator because I'm not sure if the keys are easy to press. Are the buttons comfortable to use?
A.According to staff confirmation, the retro rounded keys fit easily in your hands to prevent fatigue. Spring-loaded ergonomic design cares for your wrists. The mechanical switch buttons provide fast and precise response with a distinctive clicking sound.
Q.I'm worried about the display being too small or difficult to read. Is the screen clear and easy to see?
A.The DANRONG desktop calculator has a large 12-digit display, 4 inches, which makes calculations and reading clearly visible from any angle and very convenient and comfortable. The display is also designed with a 15 ° tilt for optimal visibility and stability.
Q.I'm not sure if this calculator is durable enough for everyday use. Is it made of sturdy material?
A.The calculator is made of durable ABS material, it feels good in your hand and is lightweight, suitable for both desktop and handheld use.
Q.I need a calculator that can be used in different lighting conditions. Does it work well with both solar and battery power?
A.The desk calculator is powered by solar and one AAA battery (not included). In the presence of sunlight or light, the battery can be dispensed with. However, due to life's variations in light, it is recommended that one AAA battery be inserted at the same time for consistent and accurate use. It also Auto shuts off after 10 minutes of inactivity to save energy.
Q.I'm looking for a calculator that is both functional and aesthetically pleasing. Is this calculator visually appealing?
A.Staff confirmation indicates the calculator is super cute and looks better in person, with many pretty colors and a very retro style.
Q.I saw one staff confirmation mentioning the product arrived damaged. Is this a common issue?
A.While one staff confirmation reported receiving a damaged product, the vast majority (78%) rate this calculator as highest quality. It might be an isolated incident, but it's always wise to inspect the product upon arrival.

SHOPSTAFF Rating Ranking

#1

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$690(incl. tax)Amazon price as of 2025-09-24

Pocket-sized, durable calculator with a clear SuperView display for easy calculations at home, school, or office.

Digit Displayed8 digitsPower SourceBattery
Display TypeLCDKey TypeRubber
Dimensions121.1x78.7x2.5 mmWeight81.6 g
Memory FunctionYesTax CalculationNo
Percentage CalculationNo
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.4Overall Rating
4.2Display Size and Readability
4.3Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.5Power Source and Battery Life
4.4Durability and Build Quality
4.6Size and Portability
4.7Manufacturer Reliability and Warranty
4.5Cost Performance
#2

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Mechanical Switch Calculator with Big Buttons

$6.99(incl. tax)Amazon price as of 2025-09-29

Mechanical switch calculator with big buttons, large LCD display, and ergonomic design. Ideal for students and teachers.

Digit Displayed12 digitsPower SourceBattery
Display TypeLCDKey TypeABS
Dimensions4.4 x 6.3 x 0.04 inchesWeight5.3 ounces
Memory FunctionNoTax CalculationNo
Percentage CalculationYes
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.4Overall Rating
4.5Display Size and Readability
4.7Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.8Power Source and Battery Life
4.3Durability and Build Quality
4.5Size and Portability
3.5Manufacturer Reliability and Warranty
4.7Cost Performance
#3

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$8.99(incl. tax)Amazon price as of 2025-09-29

Standard desktop calculator with 12-digit LCD, sensitive buttons, and dual power (solar/battery) for office, home, or school.

Digit Displayed12 digitsPower SourceBattery Powered, Solar Powered
Display TypeLCDKey TypeABS material durable plastic
Dimensions- mmWeight- g
Memory FunctionYesTax CalculationNo
Percentage CalculationYes
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.3Overall Rating
4.5Display Size and Readability
4.3Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.7Power Source and Battery Life
4.2Durability and Build Quality
4.4Size and Portability
4.0Manufacturer Reliability and Warranty
4.5Cost Performance
#4

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Standard Function Basic Calculator 1200

$4.99(incl. tax)Amazon price as of 2025-09-29

Deli Standard Function Basic Calculator with 12-digit LCD, dual power, and comfortable silicone buttons. Stylish and practical.

Digit Displayed12 digitsPower SourceBattery Powered & Solar Powered
Display TypeLCDKey TypeSilicone
Dimensions- mmWeight- g
Memory Function-Tax Calculation-
Percentage Calculation-
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.3Overall Rating
4.5Display Size and Readability
4.3Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.7Power Source and Battery Life
4.2Durability and Build Quality
4.8Size and Portability
3.5Manufacturer Reliability and Warranty
4.5Cost Performance
#5

Casio

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$6.35(incl. tax)Amazon price as of 2025-09-29

A compact and lightweight Casio calculator with an 8-digit display, solar and battery power, and basic functions.

Digit Displayed8 digitsPower SourceBattery Powered, Solar Powered
Display TypeLCDKey Type-
Dimensions- mmWeight- g
Memory FunctionYesTax Calculation-
Percentage CalculationPercent
Tax Calculation FunctionMemory FunctionSquare Root Calculation FunctionPercentage Calculation FunctionSign Change FunctionDecimal Place Setting Function
4.3Overall Rating
3.8Display Size and Readability
4.0Key Size and Tactile Feedback
4.0Basic Functionality and Features
4.5Power Source and Battery Life
4.0Durability and Build Quality
4.8Size and Portability
4.5Manufacturer Reliability and Warranty
4.7Cost Performance