Why Aurora Sound Is the Earphones & Headphones Manufacturer Global Buyers Trust
Aurora Sound manufactures TWS earphones, open-ear sport models, bone conduction designs and AI translator earbuds for audio brands, mobile accessory distributors and promotional buyers. Our current platform is the A9Pro, a semi-in-ear translator earphone with 20 hours total playtime and dual-microphone ENC.
Because we run acoustic assembly and firmware in-house, we can tune the sound signature, adjust the noise-cancelling behaviour, change the voice-prompt language set and re-tool the housing colour — all without moving the program to a different factory.
Short version: we are the factory, not a trading desk. Our production base is operated together with parent company Shenzhen Aurora Technology Limited — 400+ employees, 8 production lines, 5,000,000+ units annual group capacity and a defect rate below 1.5%. Quotation requests are answered within 3 hours. Below is how that compares with a typical catalogue supplier.
| Capability | Aurora Sound — Earphones & Headphones Manufacturer | Typical Catalogue Supplier |
|---|---|---|
| Form factors | TWS, semi-in-ear, open-ear, bone conduction | One generic TWS shell |
| ANC / ENC | Active ANC and dual-mic ENC options | None or marketing-only |
| AI translation | Multi-language translation on A9Pro | Not available |
| Battery | 20H total with case on A9Pro | 3-4H without meaningful case |
| Acoustic tuning | In-house EQ and driver selection | Fixed generic tuning |
| Voice prompts | Multi-language, customisable | Chinese or English only |
| OEM MOQ | From 5 sets | 500+ sets |
| Lead time | 3-7 days stock / 12-18 days custom | 30-45 days |
| Certifications | CE, RoHS, FCC, BQB | CE only |
Who We Are — Shenzhen Aurora Sound Technology Limited
Shenzhen Aurora Sound Technology Limited is a professional audio acoustic product manufacturer based in Shenzhen. The company is invested by Shenzhen Aurora Technology Limited, an established industrial enterprise with 400+ employees, RMB 300 million annual industrial output, and long-term supply relationships with Walmart, Bosch and Ford.
We specialise in the R&D, production and global export of earphones and headphones and the wider acoustic range covering lavalier microphones, smart audio glasses, wireless earphones, Bluetooth speakers and voice amplifiers. We currently export to 50+ countries and support FBA and direct-to-warehouse shipment for e-commerce buyers.
Factory Capability — Our Parent-Backed Manufacturing Base
Production Scale
- 8 production lines — SMT, acoustic assembly, final assembly and packing under one roof
- 5,000,000+ units annual group capacity — annual capacity across all audio categories
- defect rate below 1.5% — defect rate held below this on shipped lots
- 100% on-time dispatch — on-time dispatch record
Engineering & R&D
Our engineering team handles acoustic design, RF tuning, firmware and industrial design in-house. That is what allows us to change an EQ profile, a noise-cancelling behaviour or a housing colour within a running program instead of handing the change to a third party.
Vertical Integration
We control driver selection, chamber design, PCBA, firmware and final assembly. For earphones and headphones programs this means the sample you approve is the unit that ships at volume — the most common failure point when a brand works through a trading company instead of a manufacturer.
Earphones & Headphones We Manufacture
AI Translator Earphones
Semi-in-ear TWS with real-time multi-language translation for travel and business channels.
Models: A9Pro
- Multi-language real-time translation
- 20 hours total playtime with charging case
- Dual-microphone ENC for clear calls
- Bluetooth 5.3, ABS housing, ~45g case
Manufacturing Process — How We Build Earphones & Headphones
| Step | What Happens |
|---|---|
| 1. Incoming QC (IQC) | Components, cells and acoustic drivers inspected against AQL before they reach the line. |
| 2. SMT & PCBA | Automated surface-mount placement and reflow for the main board, followed by AOI inspection. |
| 3. Acoustic assembly | Driver mounting, chamber sealing and acoustic mesh placement in a dust-controlled area. |
| 4. Firmware loading | Bluetooth pairing logic, EQ profile and voice-prompt language written and verified. |
| 5. In-process QC (IPQC) | Sampling at each station; deviations trigger line stop and root-cause review. |
| 6. Final assembly | Housing, battery, antenna and finishing parts assembled; cosmetic inspection. |
| 7. Functional test (FQC) | 100% audio, RF, battery and button test before packing. |
| 8. Outgoing QC (OQC) | AQL sampling on finished cartons plus drop-test verification before dispatch. |
Testing & Quality — Proving Every Unit Before It Ships
We run 5-stage QC (IQC / IPQC / FQC / OQC / AQL sampling). Every unit passes functional test before packing, and finished lots pass AQL sampling before dispatch.
| Test | Standard / Method | What It Proves |
|---|---|---|
| Frequency response | 20Hz-20kHz sweep | Matches published target curve |
| THD measurement | 1kHz at rated SPL | Within published distortion limit |
| ENC verification | 80dB ambient noise chamber | Dual-mic ENC reduces ambient as rated |
| Battery runtime | Continuous playback to cutoff | 20H total case playback on A9Pro |
| Pairing stability | BT 5.3 multi-device reconnect test | Stable reconnect across tested devices |
| Charging cycle | 300 charge/discharge cycles | Capacity retention within spec |
| Drop & crush | 1.0m drop, housing crush test | Shell and battery compartment intact |
| AQL sampling | ISO 2859-1 level II | Lot-level gate before dispatch |
Certifications — The Paperwork That Protects Your Brand
| Certification | What It Means | Why Buyers Need It |
|---|---|---|
| CE | EU conformity for safety, health and environmental protection | Required to sell audio electronics in the European Economic Area |
| RoHS | Restriction of hazardous substances in electrical components | Mandatory for EU and increasingly for US retail channels |
| FCC | US Federal Communications Commission radio-frequency compliance | Legally required for any wireless product sold in the United States |
| BQB | Bluetooth Qualification Body listing for Bluetooth-enabled designs | Lets you legally use the Bluetooth wordmark and logo on retail packaging |
Applications — Where Our Earphones & Headphones Are Used
Travel & Business
AI translation and clear call quality for cross-border travellers and sales teams.
Daily Commute
Semi-in-ear comfort with 20-hour total runtime for all-day use.
Calls & Remote Work
Dual-mic ENC for home office and mobile calling.
Music & Podcasts
Tuned playback for music, podcast and audiobook channels.
Language Learning
Translation earphones bundled with education and language-app partners.
OEM/ODM Process — From Inquiry to Shipment
| Step | Action | Typical Timeline |
|---|---|---|
| 1 | Inquiry & requirements review | Day 1 |
| 2 | Engineering feasibility review | 1-2 days |
| 3 | Quotation & sample plan | Day 3 |
| 4 | Prototyping / sample build | 7-12 days |
| 5 | Sample approval (customer side) | 3-7 days |
| 6 | Mass production | 12-18 days (stock) / 35-45 days (custom) |
| 7 | Pre-shipment QC & AQL report | 2-3 days |
| 8 | Shipment & logistics | Per destination |
FAQ — Earphones & Headphones Manufacturer Buyers' Top Questions
What is the difference between an earphone trading company and an earphones manufacturer?
A trading company sources finished earphones from whichever factory is cheapest that week, so the acoustic tuning, firmware and housing can change between orders without warning. An earphones manufacturer like Aurora Sound owns the acoustic assembly line, the driver selection and the firmware. That means the unit you approve as a sample is the unit you receive at volume, and we can tune EQ, ANC behaviour and voice prompts to your market instead of shipping a generic profile.
What is the minimum order quantity for custom earphones?
Stock models start at 5 sets, which covers sampling and small pilot runs. Logo printing on the case and earbuds starts at 100 sets. Custom housing colour and packaging start at 300 sets. Firmware changes such as EQ tuning, ANC profile or additional voice-prompt languages start at 500 sets. Full ODM with new tooling starts at 1,000 sets.
Can you tune the sound signature for our market?
Yes. Acoustic tuning is one of the main reasons brands work directly with a manufacturer. We adjust driver selection, EQ curve and ANC/ENC behaviour during the engineering review, then build tuning samples for your approval before mass production. Tell us your target genre, region and price point at the inquiry stage and we will propose a starting profile.
Do your earphones support active noise cancelling?
Our current A9Pro platform uses dual-microphone ENC for call clarity. Active ANC and bone conduction platforms are part of our wider capability set and can be quoted for ODM programs. Because ANC changes the housing and the firmware together, we scope it as a defined development step rather than a drop-in option, and we will tell you honestly whether your volume justifies it.
What certifications do your earphones carry?
CE, RoHS, FCC and BQB listing for Bluetooth-enabled models. We hold certification on our own designs, so the certificate matches the exact model number and housing you order. Test reports and certificate copies are provided with the first shipment and available during the quotation stage on request.
How long does an earphone OEM program take?
Stock models ship in 3-7 working days. Logo and packaging customization takes 12-18 days. Acoustic tuning and firmware changes take 35-45 days including prototype approval. Full ODM with new housing tooling runs 60-90 days. Requirements review is returned within 1-2 working days of a complete inquiry.
Request a Quote — Start Your OEM Earphones & Headphones Program
Our engineering team returns a feasibility review and quotation within under 3 hours of a complete inquiry. To quote accurately we need:
- Target models or the specification you have in mind
- Required certifications for your market
- Annual volume estimate
- Customisation scope — logo, colour, packaging, firmware
- Target delivery port or FBA destination
Request a Quote → | Browse Earphones & Headphones → | See Our Factory →
Related Manufacturing Capabilities
Smart Audio Glasses | Wireless Microphones | Bluetooth Speakers