---
product_id: 558706534
title: "Mr. Pen Mechanical Switch 12-Digit Calculator, Large LCD Display, Blue"
brand: "mr. pen"
price: "R$210"
currency: BRL
in_stock: true
reviews_count: 12
category: "Mr. Pen"
url: https://www.desertcart.com.br/products/558706534-mr-pen-mechanical-switch-12-digit-calculator-large-lcd-display
store_origin: BR
region: Brazil
---

# Auto-off battery saver 12-digit large display Mechanical switch keys Mr. Pen Mechanical Switch 12-Digit Calculator, Large LCD Display, Blue

**Brand:** mr. pen
**Price:** R$210
**Availability:** ✅ In Stock

## Summary

> 🔢 Click, Calculate, Conquer — The Calculator That Means Business

## Quick Answers

- **What is this?** Mr. Pen Mechanical Switch 12-Digit Calculator, Large LCD Display, Blue by mr. pen
- **How much does it cost?** R$210 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/558706534-mr-pen-mechanical-switch-12-digit-calculator-large-lcd-display)

## Best For

- mr. pen enthusiasts

## Why This Product

- Trusted mr. pen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Sleek 6.2 x 4.4 inch design fits perfectly on your desk without cramping your workspace.
- • **Smart Energy Saver:** Auto-off feature activates after 10 minutes of inactivity to extend battery life effortlessly.
- • **See Every Digit Clearly:** Large 12-digit LCD display ensures maximum visibility from any angle—no more squinting.
- • **Precision at Your Fingertips:** Mechanical switch keys deliver a tactile, satisfying click for error-free data entry.
- • **Versatile Everyday Essential:** Equipped with memory recovery, percentage, and basic functions to handle all your calculation needs.

## Overview

The Mr. Pen Mechanical Switch 12-Digit Calculator combines a large, easy-to-read display with responsive mechanical keys for a premium typing experience. Its compact size and energy-saving auto-off feature make it ideal for professionals and students alike, delivering fast, accurate calculations wherever you go.

## Description

Mr. The 12 digit pen calculator is perfect for completing basic numerical calculations, making it ideal for office, elementary school, market or even home use. It features large, responsive keys that are easy to press and offer quick data entry. Mechanical switch buttons deliver a responsive and satisfying click with every press, similar to a mechanical keyboard, improving overall user experience and data entry accuracy. Equipped with essential functions such as memory recovery, percentage calculation and more, it meets a variety of computing needs. Mr. The pen calculator is portable and small size at 6.2 x 4.4 inches, so it doesn't take up much space on the computer, but still comfortable size for easy use. It also has a large 12-digit display, increasing your visibility from any angle. Operating on only one AAA battery (not included), this calculator is designed with an auto-off feature that activates after 10 minutes of inactivity, conserving battery life and ensuring its durability. Mr. The pen calculator is the perfect tool to quickly deal with daily calculation problems in various settings, such as schools, offices or even at home. It offers a fast, efficient and easy-to-use experience that makes it an ideal choice for anyone looking for a reliable calculator.

Review: Satisfying button sounds - Cute and I love the sound of the buttons Would buy again
Review: Exceptionally practical and satisfyingly usable. - Exceptionally practical and satisfyingly usable. Always get compliments for this very mechanical calculator of the mathematical means; of how splendid it appears. Worth every shilling present; Durable, button size well, easy to use.

## Features

- Mr. The 12 digit pen calculator is perfect for completing basic numerical calculations, making it ideal for office, elementary school, market or even home use. It features large, responsive keys that are easy to press and offer quick data entry.
- Mechanical switch buttons deliver a responsive and satisfying click with every press, similar to a mechanical keyboard, improving overall user experience and data entry accuracy. Equipped with essential functions such as memory recovery, percentage calculation and more, it meets a variety of computing needs.
- Mr. The pen calculator is portable and small size at 6.2 x 4.4 inches, so it doesn't take up much space on the computer, but still comfortable size for easy use. It also has a large 12-digit display, increasing your visibility from any angle.
- Operating on only one AAA battery (not included), this calculator is designed with an auto-off feature that activates after 10 minutes of inactivity, conserving battery life and ensuring its durability.
- Mr. The pen calculator is the perfect tool to quickly deal with daily calculation problems in various settings, such as schools, offices or even at home. It offers a fast, efficient and easy-to-use experience that makes it an ideal choice for anyone looking for a reliable calculator.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2Y24N2C |
| Best Sellers Rank | 18,703 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 44 in Basic Calculators |
| Guaranteed software updates until | unknown |
| Item model number | WLCT001M313 |
| Manufacturer | Mr. Pen |
| Product Dimensions | 15.75 x 11.18 x 0.1 cm; 159 g |

## Product Details

- **Brand:** Mr. Pen
- **Calculator Type:** Standard Function
- **Colour:** Blue
- **Compatible devices:** Most devices with a standard calculator function, including computers, laptops, and smartphones
- **Display type:** LCD
- **Material:** Plastic
- **Model name:** mechanical switch calculator
- **Power source:** Battery Powered
- **Product dimensions:** 15.8L x 11.2W centimetres
- **UPC:** 840316909518

## Images

![Mr. Pen Mechanical Switch 12-Digit Calculator, Large LCD Display, Blue - Image 1](https://m.media-amazon.com/images/I/81C3M-f93cL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Satisfying button sounds
*by M***1 on 1 November 2025*

Cute and I love the sound of the buttons Would buy again

### ⭐⭐⭐⭐⭐ Exceptionally practical and satisfyingly usable.
*by J***J on 4 May 2025*

Exceptionally practical and satisfyingly usable. Always get compliments for this very mechanical calculator of the mathematical means; of how splendid it appears. Worth every shilling present; Durable, button size well, easy to use.

### ⭐⭐⭐⭐⭐ Has all the necessary functions readily to hand
*by A***R on 26 December 2025*

Fun to look at and easy to use, has all the mainstream buttons/functions Nice positive feel when you press the buttons. Only thing missing is solar as a backup power source. Recommended.

## Frequently Bought Together

- Mr. Pen Mechanical Switch Calculator - 12 Digit Large LCD Display, Pink with Big Buttons
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**Shop now:** [https://www.desertcart.com.br/products/558706534-mr-pen-mechanical-switch-12-digit-calculator-large-lcd-display](https://www.desertcart.com.br/products/558706534-mr-pen-mechanical-switch-12-digit-calculator-large-lcd-display)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-22*