---
product_id: 38312547
title: "Piezo Electric Crystal Earphone Sensitive High Impedance Ceramic Ear Piece 3.5mm for Transistor Radio/Crystal Radios DIY Electronics Projects 1/8 inch Audio Jack Connector Wire Piezoelectric Element"
brand: "protechtrader"
price: "€ 16.63"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/38312547-piezo-electric-crystal-earphone-sensitive-high-impedance-ceramic-ear-piece
store_origin: NL
region: Netherlands
---

# 57dB Sensitivity 200-8kHz Frequency 20k Ohm Impedance Piezo Electric Crystal Earphone Sensitive High Impedance Ceramic Ear Piece 3.5mm for Transistor Radio/Crystal Radios DIY Electronics Projects 1/8 inch Audio Jack Connector Wire Piezoelectric Element

**Brand:** protechtrader
**Price:** € 16.63
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Sound Game with Piezo Perfection!

## Quick Answers

- **What is this?** Piezo Electric Crystal Earphone Sensitive High Impedance Ceramic Ear Piece 3.5mm for Transistor Radio/Crystal Radios DIY Electronics Projects 1/8 inch Audio Jack Connector Wire Piezoelectric Element by protechtrader
- **How much does it cost?** € 16.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/38312547-piezo-electric-crystal-earphone-sensitive-high-impedance-ceramic-ear-piece)

## Best For

- protechtrader enthusiasts

## Why This Product

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

## Key Features

- • **🔧 DIY Dream:** Perfect for STEM projects, this earphone is a must-have for electronics enthusiasts.
- • **⚡ High Impedance Power:** Designed with a robust 20,000 ohm impedance for superior sound quality.
- • **🔌 Unmatched Sensitivity:** Experience crystal-clear audio with a rated sensitivity of 57dB at 1kHz.
- • **🔗 Reliable Connectivity:** Equipped with a 3.5mm audio jack for seamless integration into your projects.
- • **🌍 Lightweight & Portable:** Weighing only 9 grams, take your audio experience anywhere with ease.

## Overview

The Piezo Electric Crystal Earphone is an upgraded model designed for DIY electronics projects, featuring a high impedance of 20,000 ohms, a sensitivity rating of 57dB, and a frequency range of 200 to 8,000Hz. Ideal for crystal and transistor radios, this lightweight earphone is perfect for STEM experiments and offers reliable audio performance with its 3.5mm audio jack.

## Description

Piezo Electric Crystal Earphone Sensitive High Impedance Ceramic Ear Piece 3.5mm for Transistor Radio/Crystal Radios DIY Electronics Projects 1/8 inch Audio Jack Connector Wire Piezoelectric Element

## Features

- NEWER Upgraded Model Available on desertcart (2023): (See B0CC6WRFFB) For a Brass Diaphragm Piezo and All Soldered Wire Connections making it more Sensitive and More Reliable
- Perfect to make electronics projects such as Crystal or Transistor Radios often used in schools and STEM electronic experiments requiring high impedance ear piece
- High 20,000 ohm impedance with resistance over 20 million ohms and a capacitance of 15,000 pf Rated Sensitivity of 57db at 1KHz in the frequency range from 200 to 8,000Hz
- Highly sensitive molded earpiece with 42-in twisted wire with 3.5mm (1/8in) headphone audio male wire connector
- Classic Piezo Electric Crystal Earphone for DIY Electronic Projects and Kits

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Control Method | Touch |
| Item Weight | 9 Grams |
| Is Electric | Yes |
| Cable Features | Retractable |
| Additional Features | Lightweight |
| Enclosure Material | Plastic |
| Specific Uses For Product | Crystal Radio |
| Headphone Folding Features | In Ear |
| Earpiece Shape | Rounded Tip |
| Headphones Ear Placement | In Ear |
| Color | (Beige - 3.5mm Headphone Jack) |
| Wireless Technology | RF |
| Connectivity Technology | Wired |
| Headphone Jack | 3.5 mm Jack |
| Frequency Range | 200 - 8,000Hz |
| Audio Driver Type | Piezoelectric Driver |
| Frequency Response | 8E+3 Hz |
| Impedance | 20000 Ohm |
| Noise Control | None |

## Product Details

- **Brand:** ProTechTrader
- **Color:** (Beige - 3.5mm Headphone Jack)
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 20000 Ohms

## Images

![Piezo Electric Crystal Earphone Sensitive High Impedance Ceramic Ear Piece 3.5mm for Transistor Radio/Crystal Radios DIY Electronics Projects 1/8 inch Audio Jack Connector Wire Piezoelectric Element - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Available Options

This product comes in different **Number of Items** options.

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**Shop now:** [https://www.desertcart.nl/products/38312547-piezo-electric-crystal-earphone-sensitive-high-impedance-ceramic-ear-piece](https://www.desertcart.nl/products/38312547-piezo-electric-crystal-earphone-sensitive-high-impedance-ceramic-ear-piece)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*