---
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: "€ 30.90"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.gr/products/67513049-piezoelectric-earphone-high-impedance-ceramic-earpiece-bare-wire-leads-transistor
store_origin: GR
region: Greece
---

# 20k Ohm Impedance 200-8000Hz Range 57dB Sensitivity 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:** € 30.90
**Availability:** ✅ In Stock

## Summary

> 🎶 Tune into Innovation with Every Project!

## 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?** € 30.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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:** Updated model features soldered connections and a brass diaphragm for enhanced durability.
- • **Connect with Ease:** Includes pre-tinned bare wire leads for straightforward integration into your projects.
- • **Impedance Powerhouse:** High 20,000 ohm impedance ensures superior sound quality.
- • **Unleash Your Creativity:** Perfect for DIY electronics projects, from crystal radios to transistor kits.
- • **Vintage Vibes, Modern Performance:** Classic style meets high sensitivity with a molded earpiece design.

## Overview

The Piezoelectric Earphone is a high-impedance, vintage-style earpiece designed for DIY electronics enthusiasts. With a remarkable 20,000 ohm impedance and a sensitivity rating of 57dB, it operates within a frequency range of 200 to 8,000Hz. This earpiece features a durable ceramic enclosure and comes with 42-inch twisted wire leads, making it ideal for various electronics projects, including crystal and transistor radios.

## Description

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

## 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 |
|---------------|-------|
| Control Method | Touch |
| Unit Count | 1.0 Count |
| Item Weight | 0.22 Ounces |
| Is Electric | Yes |
| Cable Features | Retractable |
| Additional Features | Piezo Electric 20k ohm Impedance Ear Piece, High Sensitivity Vintage Style Ear Phone |
| Enclosure Material | ceramic |
| Headphone Folding Features | In Ear |
| Headphones Ear Placement | In Ear |
| Color | (Beige - Bare Wire Leads) |
| Wireless Technology | RF |
| Connectivity Technology | Wired |
| Headphone Jack | 3.5 mm Jack |
| Impedance | 20000 Ohm |
| Noise Control | None |

## Product Details

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

## 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

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

Have used in several different circuits. No problem. Recommend

### ⭐⭐⭐⭐⭐ 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!

## Frequently Bought Together

- 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
- BOJACK 1N34A Germanium Diode 50 mA 65V Axial 1N34A 50 millimap 65 volt Electronic Diodes (Pack of 25)
- BNTECHGO 28 AWG Magnet Wire - Enameled Copper Wire - Enameled Magnet Winding Wire - 4 oz - 0.0122" Diameter 1 Spool Coil Red Temperature Rating 155℃ Widely Used for Transformers Inductors

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.gr/products/67513049-piezoelectric-earphone-high-impedance-ceramic-earpiece-bare-wire-leads-transistor](https://www.desertcart.gr/products/67513049-piezoelectric-earphone-high-impedance-ceramic-earpiece-bare-wire-leads-transistor)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-23*