---
product_id: 67513049
title: "Piezoelectric Earphone High Impedance Ceramic Earpiece Bare Wire Leads Transistor Crystal Radios & DIY Make Electronics Projects 20,000 (20k) Ohm Sensitivity Vintage Classic Style Piezo Electric"
brand: "protechtrader"
price: "6.89 OMR"
currency: OMR
in_stock: true
reviews_count: 13
category: "Pro Tech Trader"
url: https://www.desertcart.com.om/products/67513049-piezoelectric-earphone-high-impedance-ceramic-earpiece-bare-wire-leads-transistor
store_origin: OM
region: Oman
---

# 57dB sensitivity @1kHz 20,000Ω high impedance 42-inch twisted bare wire Piezoelectric Earphone High Impedance Ceramic Earpiece Bare Wire Leads Transistor Crystal Radios & DIY Make Electronics Projects 20,000 (20k) Ohm Sensitivity Vintage Classic Style Piezo Electric

**Brand:** protechtrader
**Price:** 6.89 OMR
**Availability:** ✅ In Stock

## Summary

> 🎙️ Build your sound legacy with every wire twist!

## Quick Answers

- **What is this?** Piezoelectric Earphone High Impedance Ceramic Earpiece Bare Wire Leads Transistor Crystal Radios & DIY Make Electronics Projects 20,000 (20k) Ohm Sensitivity Vintage Classic Style Piezo Electric by protechtrader
- **How much does it cost?** 6.89 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/67513049-piezoelectric-earphone-high-impedance-ceramic-earpiece-bare-wire-leads-transistor)

## 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

- • **Built to Last:** All-soldered connections and brass diaphragm boost durability and reliability.
- • **DIY Dream Essential:** Perfect for crystal and transistor radio kits, empowering your hands-on creativity.
- • **Bare Wire Flexibility:** 42-inch twisted wire with pre-tinned leads for seamless custom wiring and integration.
- • **Crystal Clear Sensitivity:** 57dB rated sensitivity ensures crisp sound reproduction from 200Hz to 8kHz.
- • **Vintage Vibes, Modern Precision:** Classic piezoelectric driver with 20kΩ impedance for authentic DIY audio projects.

## Overview

This Piezoelectric Crystal Earphone features a high 20,000 ohm impedance and 57dB sensitivity, delivering vintage-style audio clarity ideal for DIY electronics projects like crystal and transistor radios. Its durable brass diaphragm and all-soldered connections ensure long-lasting performance, while the 42-inch twisted bare wire leads offer flexible integration for custom builds.

## Description

desertcart.com: Piezoelectric Earphone High Impedance Ceramic Earpiece Bare Wire Leads Transistor Crystal Radios & DIY Make Electronics Projects 20,000 (20k) Ohm Sensitivity Vintage Classic Style Piezo Electric : Electronics

Review: Great service and quick delivery... - Good item for the price..
Review: Just like when I was a kid - My son recently discovered crystal/trench radios and wanted to try his hand at making one. He asked for a piezo earpiece and this is the one I decided to grab for him. Its just like the one I used when I was his age to make a radio. Worked flawlessly. Grab one and get building a radio!

## Features

- Perfect to make electronics projects like Crystal or Transistor Radios DIY Electronics Kits
- 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
- Classic style highly sensitive molded earpiece with 42-in twisted wire with pre-tinned bare wire connections (Also available with 3.5mm Aux Headphone Style Phono Connector - See B01JEOH3QQ)
- 2022 Updated Model Available (See B09MZML96L) Featuring All Soldered Connections and a Brass Diaphram for Increased reliability and life. PiezoElectric Crystal Earpiece for DIY Electronics Kits

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071JWPTT9 |
| Age Range (Description) | Adult |
| Audio Driver Type | Piezoelectric Driver |
| Best Sellers Rank | #54,142 in Electronics ( See Top 100 in Electronics ) #2,717 in Earbud & In-Ear Headphones |
| Cable Feature | Retractable |
| Compatible Devices | Crystal Radios, Transistor Radios |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Customer Reviews | 4.5 4.5 out of 5 stars (212) |
| Date First Available | May 29, 2017 |
| Earpiece Shape | in-ear |
| Hardware Interface | 2.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Included Components | Piezoelectric Earphone with Bare Wire Leads for Crystaol Radios |
| Input Device Interface | Audio jack |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.22 ounces |
| Item model number | Piezo-bare |
| Manufacturer | ProTechTrader |
| Material | ceramic |
| Model Name | Piezo-bare |
| Noise Control | None |
| Number of Items | 1 |
| Product Dimensions | 1 x 1 x 1 inches |
| Special Feature | High Sensitivity Vintage Style Ear Phone, Piezo Electric 20k ohm Impedance Ear Piece |
| Specific Uses For Product | DIY Electronics Projects |
| Supports Bluetooth Technology | No |
| UPC | 789048342869 |
| Units | 1.0 Count |
| Wireless Communication Technology | RF |

## Product Details

- **Brand:** ProTechTrader
- **Color:** (Beige - Bare Wire Leads)
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 20000 Ohms

## Images

![Piezoelectric Earphone High Impedance Ceramic Earpiece Bare Wire Leads Transistor Crystal Radios & DIY Make Electronics Projects 20,000 (20k) Ohm Sensitivity Vintage Classic Style Piezo Electric - Image 1](https://m.media-amazon.com/images/I/61TseA8aIQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great service and quick delivery...
*by J***T on July 27, 2025*

Good item for the price..

### ⭐⭐⭐⭐⭐ Just like when I was a kid
*by M***N on August 5, 2024*

My son recently discovered crystal/trench radios and wanted to try his hand at making one. He asked for a piezo earpiece and this is the one I decided to grab for him. Its just like the one I used when I was his age to make a radio. Worked flawlessly. Grab one and get building a radio!

### ⭐⭐⭐⭐⭐ Good quality
*by L***E on December 14, 2024*

Have used in several different circuits. No problem. Recommend

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-16*