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High Impedance Crystal Earphone for Crystal Radio, Piezoelectric Earpiece

Product ID: 422748152

Details

Brand
ProTechTrader
Color
Beige
Ear Placement
In Ear
Form Factor
In Ear
Impedance
20000 ohm

🎧20,000Ω high impedance

🔋No battery or amplifier needed

🛠️42-inch pre-tinned bare wire leads

€ 19.35

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎙️ Hear the Future of Vintage Tech Today!

DURABLE BRASS DIAPHRAGM - Upgraded brass diaphragm delivers reliable, long-lasting sound quality over typical tin alternatives.
PLUG AND PLAY SIMPLICITY - Operates effortlessly without batteries or external amplifiers—just connect and listen.
EXTENDED REACH WITH LONG LEADS - 42-inch twisted black cable with pre-tinned bare wires offers flexible, easy integration into any DIY project.
PERFECT FOR MAKERS TINKERERS - Ideal for crystal radios, transistor restorations, lab demos, and signal tracing—engineered for the hands-on professional.
CRYSTAL CLEAR SIGNAL PRESERVATION - 20,000Ω impedance ensures your delicate crystal radio signals stay pure without signal drain.

The ProTechTrader High Impedance Crystal Earphone is a premium piezoelectric earpiece designed specifically for crystal radios and sensitive audio circuits. Featuring a 20,000-ohm impedance, it preserves weak signals without external power, while its brass diaphragm and soldered connections ensure durability and superior sound clarity. With a 42-inch pre-tinned lead cable, it offers versatile connectivity for DIY electronics, radio restoration, and lab experiments—making it the go-to choice for millennial makers who demand both performance and reliability.

Specifications

ASIN	B09MZML96L
Additional Features	All Soldered Connections, Black wire with bare pre-tinned leads, Brass Diaphram
Age Range Description	Adult
Audio Driver Type	Piezoelectric Driver
Best Sellers Rank	#545 in Two-Way Radio Headsets & Microphones
Brand	ProTechTrader
Brand Name	ProTechTrader
Built-In Media	Earphone only
Cable Features	Retractable
Color	Beige
Compatible Devices	DIY Electronics Kits, Crystal Radios, Transistor Sensitive Projects, Lab research, experiments
Connectivity Technology	Wired
Control Method	Remote
Customer Reviews	4.5 out of 5 stars 78 Reviews
Ear Placement	In Ear
Earpiece Shape	Rounded Tip
Form Factor	In Ear
Frequency Response	8000 hertz
Generation	1st Generation
Hardware Interface	USB
Headphone Folding Features	In Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	In Ear
Impedance	20000 ohm
Input-Device Interface	Audio jack
Item Weight	0.01 kg
Manufacturer	ProTechTrader
Mfr Part Number	Piezo-Brass-Black-Bare
Model Name	Piezo-Brass-Black-Bare
Model Number	Piezo-Brass-Black-Bare
Noise Control	None
Number of Items	1
Number of Packs	1
Sensitivity	57 db
Specific Uses For Product	DIY Electronics and Radio Building
Style Name	Brass Black Wire
UPC	789048343323
Unit Count	1 Count
Warranty Description	90 Days
Water Resistance Level	Not Water Resistant

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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€ 19.35

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Spain.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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