We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.
🎙️ Build your sound legacy with every wire twist!
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.
| 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 |
J**T
Great service and quick delivery...
Good item for the price..
M**N
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!
L**E
Good quality
Have used in several different circuits. No problem. Recommend
N**F
Works, but too bit for a human ear canal
I wonder whether anybody has actually gotten one of these to fit inside their ear canal? Maybe I'm doing it wrong, but should be intuitive, right? Put the part that goes into the ear canal into the ear canal, right? I suspect I might have ordered the "elephant" version instead. Admittedly, when I hold it against my ear canal, I can hear my crystal with it, so it must be working.
C**0
The voice of the CRYSTAL, still enchanting after 100 years
I build a lot of different types of radios and related stuff. Use these earphones on very basic crystal/fox hole type sets. OK price, decent sound and no issues with any of them. This radio is printed on a FLASH FORGE 3D printer (reviewed on AMAZON), uses coil wire and a germanium diode also from AMAZON. A good ground, a long enough antenna (both with the same coil wire as the coil) and you can listen to local AM broadcasts. No matter how many I make, it is always fun when the static softens and a voice or music is clear. And it is powered purely by the radio waves themselves.
K**R
Crystal set
I plan on building an old crystal radio, and have gotten all of the components, now gathered. The wire will be to wind a coil, and since the crystal radios are so simple,there is not much to say about the wire other than it is wire,m in the correct diameter, and came quickly and was as expected.
M**I
Doesn’t work
This was an extremely poor product I could not tune to a single radio channel in multiple locals
H**C
Fast service. Product received was well packaged.
It is exactly what I was looking for; it will be used in assembling a "Fox Hole Radio". Thanks.
O**U
Der Ohrhörer erfüllt 100%ig die Angaben des Herstellers; er funktioniert (korrekte Anpassung wohl vorausgesetzt) sehr gut. - Ich bedanke mich für diesen Artikel. Gruß o.thu
L**R
Écouteur à cristal (haute-impedance) pour project, três bonne qualité
N**D
Received the piezoelectric earphones fast and as described! A+
C**S
Works as expected.
C**N
Ok.
Trustpilot
2 weeks ago
1 month ago