---
product_id: 589796333
title: "4.2inch Passive NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer Fast Refreshing 400×300 Black/White Color E-ink Display"
brand: "coolwell"
price: "₨35201"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/589796333-4-2inch-passive-nfc-powered-e-paper-no-battery-wireless
store_origin: LK
region: Sri Lanka
---

# Fast refresh at 400×300 dpi 4.2-inch crisp display Passive NFC wireless power & data 4.2inch Passive NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer Fast Refreshing 400×300 Black/White Color E-ink Display

**Brand:** coolwell
**Price:** ₨35201
**Availability:** ✅ In Stock

## Summary

> 📲 Power up your display game—wireless, battery-free, and refreshingly fast!

## Quick Answers

- **What is this?** 4.2inch Passive NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer Fast Refreshing 400×300 Black/White Color E-ink Display by coolwell
- **How much does it cost?** ₨35201 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/589796333-4-2inch-passive-nfc-powered-e-paper-no-battery-wireless)

## Best For

- coolwell enthusiasts

## Why This Product

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

## Key Features

- • **Battery-Free Brilliance:** Say goodbye to battery hassles with innovative passive NFC powering.
- • **Plug-and-Play Android App:** Refresh content as easily as swiping a credit card with the intuitive app.
- • **Seamless Wireless Refresh:** Update your display effortlessly via smartphone NFC—no cables, no clutter.
- • **Ultra-Crisp E-Ink Display:** 400×300 dpi resolution delivers sharp, easy-on-the-eyes black & white visuals.
- • **Versatile Professional Use:** Perfect for price tags, asset tracking, shelf labels, and conference badges—stay ahead in any setting.

## Overview

This 4.2-inch passive NFC-powered e-paper display combines cutting-edge wireless technology with a high-resolution 400×300 black and white E-ink screen. It requires no battery, drawing power and data via NFC from smartphones or readers, enabling fast, cable-free content updates through an easy-to-use Android app. Ideal for dynamic labeling and tagging in professional environments, it offers a sleek, sustainable, and hassle-free digital signage solution.

## Description

4.2inch Passive NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer Fast Refreshing 400×300 Black/White Color E-ink Display

## Features

- 4.2inch NFC-Powered E-Paper: Adopts Novel Passive NFC Technology; No Battery Required, No More Battery Life Trouble
- Wireless NFC-Powered Display Refreshing: No Messy Wiring, Stable Operation, Fast Refreshing
- Application Examples: Suitable For Price Tags, Asset/Equipment Tags, Shelf Labels, Conference Name Tags...
- How It Works: To Refresh The Display Content, Use A Smart Phone With NFC Function, Or An NFC Reader, Close To The E-Paper For Both Wireless Powering And Data Transfer;Comes With Android APP, As Easy As Swiping A Credit Card
- Download resources: www.waveshare.com/wiki/4.2inch_NFC-Powered_e-Paper

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Print media | Labels |
| Max input sheet capacity | 1 |
| Compatible devices | Smartphones |
| Maximum colour print resolution | 400×300 dpi |
| Sheet size | 4.2 inches |
| Maximum black and white print resolution | 400 dpi |
| Colour depth | 1 bpp |
| Dual-sided printing | Yes |
| Package Dimensions | 15.75 x 11.18 x 4.83 cm; 60 g |
| Item model number | NFC-Powered e-Ink |
| Manufacturer | Waveshare |
| Standing screen display size | 4.2 Inches |
| Processor Count | 1 |
| Connectivity Type | NFC |
| Number of USB 2.0 Ports | 2 |
| Operating System | Android |
| Are Batteries Included | No |
| Item Weight | 60 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** coolwell
- **Connectivity technology:** NFC
- **Printing technology:** e-Paper
- **Special feature:** Portable
- **Colour:** White
- **Model name:** NFC-Powered e-Paper
- **Printer output:** Monochrome
- **Item weight:** 0.06 Kilograms
- **Controller type:** Android
- **Maximum Supported Paper Size:** 107.95mm x 152.4mm

## Images

![4.2inch Passive NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer Fast Refreshing 400×300 Black/White Color E-ink Display - Image 1](https://m.media-amazon.com/images/I/51qCZc2HSUL.jpg)

## Frequently Bought Together

- 4.2inch Passive NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer Fast Refreshing 400×300 Black/White Color E-ink Display
- Waveshare 1.54inch NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer (Pure White Case)
- IBest 2.13inch Passive NFC-Powered e-Paper Black/White e-Ink Display, No Battery Required, Wireless Powering and Data Transfer,Refreshed By Smartphone

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**Shop now:** [https://www.desertcart.lk/products/589796333-4-2inch-passive-nfc-powered-e-paper-no-battery-wireless](https://www.desertcart.lk/products/589796333-4-2inch-passive-nfc-powered-e-paper-no-battery-wireless)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-09*