Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Piezoelectric Crystal Earphone Bare Wire

Product ID: 67513049

Details

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

⚡Passive piezoelectric driver

🔊20KΩ ultra-high impedance

🔌42-inch bare wire leads

872 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered 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 Czech Republic.

Secure transaction

Description

🎧 Unlock vintage vibes with modern DIY precision!

COMPACT CERAMIC COMFORT - Lightweight, in-ear ceramic earpiece ensures discreet, noise-isolating listening for focused project work.
PLUG AND SOLDER FREEDOM - 42-inch tinned bare wire leads offer flexible, direct solder or terminal connections—perfect for custom DIY setups.
BATTERY FREE SOUND MAGIC - Passive piezoelectric technology converts weak signals into crisp audio without any external power source.
PRECISION SIGNAL TRACING - Ideal for electronics pros needing reliable audio feedback during circuit diagnostics and radio repairs.
CRYSTAL CLEAR VINTAGE AUDIO - Experience authentic sound with a 20,000-ohm impedance designed for crystal radios and transistor restorations.

The ProTechTrader CH905 Piezoelectric Crystal Earphone features a high-impedance 20K-ohm ceramic driver with 42-inch bare wire leads, enabling battery-free audio playback for crystal radios, transistor restorations, and signal tracing. Designed for professional DIY electronics enthusiasts, it delivers clear, passive sound isolation in a lightweight, solder-ready form factor.

Specifications

ASIN	B071JWPTT9
Additional Features	High Sensitivity Vintage Style Ear Phone, Piezo Electric 20k ohm Impedance Ear Piece
Age Range Description	Adult
Audio Driver Type	Piezoelectric Driver
Best Sellers Rank	#367,312 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #400 in Lab ESD Supplies
Brand Name	ProTechTrader
Built-In Media	Piezoelectric Earphone with Bare Wire Leads for Crystaol Radios
Cable Features	Retractable
Color	(Beige - Bare Wire Leads)
Compatible Devices	Crystal Radios, Transistor Radios
Connectivity Technology	Wired
Control Method	Touch
Customer Reviews	4.6 4.6 out of 5 stars (221)
Earpiece Shape	in-ear
Enclosure Material	ceramic
Hardware Interface	2.5mm Audio
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	6.26 g
Manufacturer	ProTechTrader
Model Name	Piezo-bare
Model Number	RM
Noise Control	Sound Isolation
Number of Items	1
Number of Packs	1
Specific Uses For Product	DIY Electronics Projects
UPC	789048342869
Unit Count	1 Count
Warranty Description	1 Year
Water Resistance Level	Not Water Resistant
Wireless Technology	RF

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

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

872 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered 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 Czech Republic.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews