Wholesale True Wireless Earbuds with Case from China
True wireless earbuds are the highest volume audio product in the trade, and the factory landscape runs from chipset level engineering to casing workshops that assemble the same shell with different insides. The shell is identical; the experience is not, and the difference lives in the driver, the radio and the battery.
The failures: pairing that drops when a phone sits in a pocket, batteries that fade within months because the cells were the cheapest lot available, and case hinges or charge contacts that fail before the season ends. Each is a specification line, and each is testable in a day of bench work.
The category context is in our wholesale electronics overview.
Driver, radio and battery
The driver and its tuning decide the sound; the bluetooth chipset and antenna decide the connection stability that decides the reviews. Battery cells are the quiet cost centre: the same earbud shell can carry a name brand cell or a lottery cell, and cycle life is where the difference pays out.
The case is the product’s other half: charge contacts, hinge life, cell capacity and the magnet alignment that seats the buds. Firmware is the invisible layer, and the same hardware with different firmware pairs, switches and drains differently, which is why the bench test, not the datasheet, is the buying tool.
Specifications and minimum order
Chipset and cell prices move with the component markets, so live figures come with the quotation. Fix these points.
| Specification | What to confirm before you order |
|---|---|
| Driver | Size and type, with the tuning target described |
| Radio | Bluetooth version and chipset family, named |
| Battery | Cell brand or grade, cycle life and the playtime claim tested |
| Case | Cell capacity, hinge cycle count and contact plating |
| Controls | Touch or button, and the voice assistant integration |
| Compliance | Radio and safety marks for the destination market, model matched |
| Minimum order | Hundreds per model in practice; certification and tooling set the floor per model |
Our minimum order is 1 piece, so the bench tested sample is approved before any production commitment. The production minimum follows the model and its certification, and we confirm it in writing. Our sourcing service separates the engineering plants from the rebranding workshops before quoting.
Pairing stability is a dealbreaker
Customers forgive average sound; they do not forgive dropouts. Pairing stability is a radio and antenna engineering property, and the bench test is simple: paired phone in a pocket, walk the building, stream continuously. Plants that engineer radios pass; plants that assemble casings fail, and the difference is invisible until the test.
Battery cycle life is the second bench item. Charge and discharge a bulk unit through a compressed cycle test and the cell grade reveals itself; a lottery cell loses capacity visibly within dozens of cycles. Our quality assurance service writes both tests into the order.
What belongs in the purchase order
- Driver and tuning target, described in words you can verify by ear
- Bluetooth chipset family and version
- Cell grade with the cycle life standard
- Case capacity, hinge cycle count and contact plating
- Compliance marks matched to the model and market
- Packing: retail box contents, manual language set and carton limits
Checks that catch the repeat failures
- Pocket walk test. Stream through a building with the phone pocketed; dropouts show in the first ten minutes.
- Cycle test. Charge and discharge bulk units through a compressed cycle set; weak cells fade visibly.
- Hinge and contact check. Open the case fifty times and inspect the charge contacts for wear and plating.
- Playtime verification. Run the playtime claim on a bulk unit at normal volume; the claim meets the clock or it does not.
- Certificate match. Match radio compliance marks to the model number in the carton.
These checks are standard work in a pre shipment inspection, and our factory inspection service covers audio plants. For how electronics move, see our international transport guide.
Frequently asked questions
Can we brand the earbuds and case?
Yes, and most buyers do: logo on the bud and case, custom colourway and retail box. The specification lines above carry the quality underneath the brand. Our minimum order is 1 piece for sampling any branding tier.
Why do some models pair badly?
Radio engineering, not luck. Antenna design, chipset family and firmware tuning decide it, and the pocket walk test on a bulk unit tells you which kind of plant you are buying from before you pay.
What is the usual warranty claim?
Battery fade and case hinges. Both are specification lines with cycle standards, and both are verified on bulk units during inspection, which converts the top two complaint categories into non events.
Request a quotation
Send the market, the feature tier you want and the quantity. We come back with model options plus the workable minimum within two business days.
