Frequently Asked Questions

We're a Hong Kong-based OEM and private-label audio cable supplier, not a factory. Your cables are made by our manufacturing partners in Guangdong, China. Haisen Innovations Limited is your contracting supplier: we write the specification, quote and invoice in our own name, have every bulk order inspected before shipment, and are responsible for what we deliver.

Haisen Innovations Limited is registered in Hong Kong (CR No. 78420197), with its office at Rm 102, 1/F, The Cloud, 111 Tung Chau Street, Tai Kok Tsui, Kowloon, Hong Kong. Production takes place at our manufacturing partners in Guangdong, China.

No. We supply business customers only — brands, retailers, distributors, studios, cable builders and installers. Please include your company name and website when you send an inquiry or sample request.

We communicate in English, by email, phone or WhatsApp. Our business hours are Monday to Friday, 9:00 a.m. to 6:00 p.m. Hong Kong time (UTC+8), and we reply within 1 business day.

We ship worldwide. Samples and parcel-size orders go by express courier, typically arriving in North America or Europe within 3–7 days. Larger orders ship by sea or air freight through your forwarder.

We work with low MOQs. The exact minimum depends on the cable type, length and level of customization — a logo on a stock design needs less than a custom jacket color or new packaging. Tell us your target quantity, even if it's small, and we confirm the minimum in your quote.

Yes. You can combine several designs, lengths or colors in one order to reach the minimum, with a smaller minimum per design. This helps stores and new brands start with a full range without overstocking any single SKU. We confirm the split in your quote.

Every custom cable is priced on its construction, connectors, length, customization and quantity, so a price list would be misleading. Send us your requirements, and we quote by quantity — within 2 business days for standard products and 3–5 business days for custom or project work.

Use our inquiry form or email sales@haisenaudio.com. Include the cable type, connectors, length, quantity range, target market and any branding or packaging needs. Drawings, pinouts and reference photos help us quote accurately the first time.

Yes. We're happy to sign your NDA before you share designs, or we can send you our standard NDA. Your logo, artwork and the custom specification you approve belong to you.

We reply within 1 business day with questions or next steps. Quotes follow within 2 business days for standard products, or 3–5 business days for custom and project work. After you accept, we confirm the specification in writing, make samples for your approval and issue a proforma invoice for production.

Length, jacket color and braid pattern, connectors and plating finish, cable construction, logo and packaging. You can start with your logo on a stock design or develop a fully custom cable. Contact plating (gold or nickel) and housing finish (nickel, black chrome or gold) can both be customized; each product page shows its standard build.

Your logo can be applied by laser engraving, pad printing, metal badges, heat-shrink printing, jacket printing, printed hook-and-loop ties or custom-tooled housings, so you can choose the method that suits your product. The logo area depends on the connector and cable. Send a vector file (AI, EPS, SVG or PDF), and we'll recommend the best method.

Yes. Send us your GS1-registered UPC or EAN numbers, and we apply them to each unit or box and check that they scan before shipment. We also print Amazon FBA labels and mark cartons to your marketplace or retailer requirements.

Yes. Send your drawing, pinout or wiring diagram, and we confirm it in writing before sampling. New parts, such as a custom connector housing, need tooling: a one-time charge quoted separately, typically adding 15–25 days.

Yes, for your own design or a generic construction. Send the sample with the changes you want; we measure it, write the specification and confirm it with you in writing before sampling. We don't copy another brand's protected design or logo.

Yes. Samples of stock designs are free of sample charges, up to 2 pieces per design and 5 designs per request; you pay shipping or use your DHL, FedEx or UPS account. Custom samples carry a sampling fee, credited in full against a bulk order that meets the MOQ and is placed within 60 days.

Stock samples typically ship within 2–5 business days. Custom samples with your logo or colors typically take 7–15 business days, and samples that need new tooling take longer. Your quote confirms the timing.

Standard designs typically take 15–30 days after sample approval and deposit. Custom packaging or braid patterns typically add 7–10 days, and new tooling adds 15–25 days. Your quote and proforma invoice confirm the dates for your order.

Yes. Production typically pauses for 2–4 weeks around Chinese New Year, usually in January or February. Place orders for that period early, and we'll confirm cut-off dates in your quote.

Reorders of an approved design use the same specification and golden sample, so they skip sampling. Standard designs typically take 15–30 days after your deposit, and your quote confirms the dates. If a component has changed since your last order, we tell you before production starts.

Every bulk order is inspected before it ships. Haisen staff or a third-party inspector we appoint checks the goods against the approved golden sample using AQL sampling (ISO 2859-1), including appearance, length, labels, barcode scans, continuity and pinout. You receive the report and photos before you pay the balance.

Yes. Third-party pre-shipment inspection by an agency you choose, such as SGS, Bureau Veritas or QIMA, is welcome at your own cost. Tell us when you place the order so we can schedule it.

Yes, for confirmed projects. Haisen can arrange a visit to the production site for your order, accompanied by our team. We don't publish partner names or addresses on our website.

It depends on the product and configuration. We can arrange RoHS testing, and CE or FCC testing where applicable, for your product on a per-project basis, with reports issued for your brand. Tell us your target market, and we'll confirm which tests your configuration needs before you order. We don't describe passive cables as "CE certified".

Your brand or importer is. We can arrange testing for your product, with reports issued for your brand, and print the label information you provide, such as EU GPSR details and Proposition 65 warnings. Haisen is not your EU Responsible Person or importer, and we don't ship DDP to the EU.

DAP by express courier is our standard. For freight, we offer FOB Shenzhen or Hong Kong and FCA Hong Kong with your forwarder. DDP to the United States, including Amazon FBA warehouses, is quoted on request. We don't offer DDP to the EU or EXW.

Bank transfer (T/T) for all orders, PayPal for samples and small orders, and a letter of credit at sight for large projects. Quotes are in USD. Bulk orders are 30% deposit and 70% before shipment, after you receive the inspection report and photos. We only accept payment to bank accounts in the name of Haisen Innovations Limited, and we will never change our bank details by email.

Yes. We print and apply FNSKU unit labels and carton labels from your Seller Central files. DDP delivery to US FBA warehouses is quoted on request; for other marketplaces, we ship to your forwarder or prep center.

We cover manufacturing defects for 12 months from delivery. Send us photos or a video of the problem, and we'll replace the goods, refund you or credit your next order. Please report short quantities and visible damage within 14 days of receiving the goods.