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CH905 is very sensitive and works great with crystal radios. Crystal radios can fee magical, given their ability to tune in audio from distant stations with nothing but the energy from the radio signal itself. To achieve this feat, they typically rely on a high-impedance earphone to produce an audible sound with very little current.
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Key Specifications: HS Code: 8518.30 | Material: Ceramic Piezoelectric Element with Copper Wire Coil | Grade/Type: CH905 High Impedance Ceramic Earphone | Impedance: 2,000 - 5,000 Ohms (typical) | Element Type: Ceramic Piezoelectric Crystal Detector | Frequency Response: 300 Hz - 3.4 kHz | Application: Crystal Radio Sets, Vintage Radio Restoration, Educational Science Kits, Hobbyist Electronics | Packaging: Bulk Tray / Anti-Static Bag (Export Standard) | Origin: China | Port: 218
Supply & Ordering: Minimum Order Quantity: 100 Pieces
HS Code: 8518.30 — classified under Networking & Communications Devices.
Ideal for: Importers, wholesalers, distributors, and manufacturers looking for quality networking & communications devices products with verified suppliers and competitive pricing on EximNext.
| HS Code | 8518.30 |
| Material | Ceramic Piezoelectric Element with Copper Wire Coil |
| Grade/Type | CH905 High Impedance Ceramic Earphone |
| Impedance | 2,000 - 5,000 Ohms (typical) |
| Element Type | Ceramic Piezoelectric Crystal Detector |
| Frequency Response | 300 Hz - 3.4 kHz |
| Application | Crystal Radio Sets, Vintage Radio Restoration, Educational Science Kits, Hobbyist Electronics |
| Packaging | Bulk Tray / Anti-Static Bag (Export Standard) |
| Origin | China |
| Port | 218 |

FOREMOST is a professional headphone manufacturer. Our various OEM earphone and OEM headset have been provided to world since 1973. We have been developing through years of experience and accumulated know-how from the global market. We have an excellent manufacturing team that can help customers with the lowest cost and best quality. With 50 years of OEM earphone and OEM headset experience, FOREMOST is the best headphone manufacturer supplying to all over the world.
The CH905 High Impedance Ceramic Earphone is a specialized audio component designed for crystal radio receivers and vintage radio restoration projects. Featuring typical impedance of 2,000 to 5,000 ohms, this earphone delivers exceptional sensitivity from extremely low RF signal power, making it ideal for educational science kits and hobbyist applications. This niche but steady-demand export product serves antique electronics collectors, school science programs, and specialty audio hobbyists globally, with packaging typically in bulk trays for trade.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
High Impedance Ceramic Earphone - CH905 is available for wholesale import from Foremost Electronic Co., Ltd., a verified Supplier based in Taiwan. The current FOB price is p. Minimum order quantity starts at 100 Pieces. HS Code: 8518.30 — used for customs classification and import duty calculation. Key product specifications include 8518.30, Ceramic Piezoelectric Element with Copper Wire Coil, CH905 High Impedance Ceramic Earphone.
Active buying requirements from importers looking for Networking & Communications Devices

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When sourcing High Impedance Ceramic Earphone - Ch905 for your business, securing the right balance of quality and cost is essential. Foremost Electronic Co., Ltd., a verified supplier based in Taiwan, offers this product with key specifications including CH905 High Impedance Ceramic Earphone, 2,000 - 5,000 Ohms (typical), and Ceramic Piezoelectric Crystal Detector. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at p and manage bulk orders with a minimum order quantity (MOQ) of 100 Pieces. This product is actively traded under HS Code 8518.30, making it a staple in the Audio Cassette Parts sector with strong demand from importing countries worldwide.
Importing High Impedance Ceramic Ea requires careful attention to shipping logistics, customs compliance, and secure payment terms. Foremost Electronic Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8518.30 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this High Impedance Ceramic Ea has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Audio Cassette Parts category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Importing High Impedance Ceramic Ea requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8518.30 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for High Impedance Ceramic Earphone - Ch905 from Foremost Electronic Co., Ltd. is p on FOB terms from Taiwan. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Foremost Electronic Co., Ltd. through EximNext.
The supplier, Foremost Electronic Co., Ltd., has set a Minimum Order Quantity (MOQ) of 100 Pieces for High Impedance Ceramic Ea. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, High Impedance Ceramic Earphone - Ch905 is classified under HS Code 8518.30. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import High Impedance Ceramic Ea from Taiwan, negotiate shipping terms (FOB, CIF, or EXW) directly with Foremost Electronic Co., Ltd.. Ensure you have the necessary import licenses for Audio Cassette Parts products in your destination country.
Yes, Foremost Electronic Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for High Impedance Ceramic Earphone - Ch905 supplied by Foremost Electronic Co., Ltd. include CH905 High Impedance Ceramic Earphone, 2,000 - 5,000 Ohms (typical), and Ceramic Piezoelectric Crystal Detector. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Foremost Electronic Co., Ltd. offers High Impedance Ceramic Ea with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
High Impedance Ceramic Ea is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Foremost Electronic Co., Ltd. through our platform.
Foremost Electronic Co., Ltd. maintains international quality certifications. These ensure that the High Impedance Ceramic Ea meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Foremost Electronic Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Foremost Electronic Co., Ltd..
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