Sleep audio · OEM and ODM

Quiet sleep,built on your mould.

We develop, tune and manufacture sleep earbuds and silicone earplugs for importers, brands and retail buyers, from tooling to export carton.

  • Private-mould structures
  • In-house acoustic tuning
  • Certification documents
  • Export packing
White sleep earbuds beside a pillow in soft morning light

Markets we quote

  • North America
  • Europe
  • Middle East
  • Southeast Asia
  • Japan and Korea
  • Australia

Buyers we supply

  • Importers and distributors
  • Retail buyers and chains
  • Brand owners, OEM and ODM
  • Cross-border sellers

A sleep factory built around your product, not a catalogue.

GADRO works on private moulds for sleep products rather than rebadged stock. Our engineers handle ID and structure, silicone tooling, acoustic chambers and pilot production, so a new model does not pass through four separate suppliers.

Buyers come to us with a shell, a target cost and a market. We come back with a structure, a fit and isolation profile, and a production plan that can be quoted line by line.

Tooling in our own workshop
Mould design, machining and trial shots stay under one roof, which shortens the loop between a drawing and a usable sample.
Acoustics before tooling
Silicone hardness, cavity volume and masking sound are measured on samples, so the result is agreed before the mould is cut.
Pilot line before volume
A pilot run checks assembly, charge cycles and fit on the real line, not only on hand-built samples.
Documents per market
Test reports, declarations and labelling are prepared against the model and the country you ship to.
Silicone earplug moulds and parts on a production bench

Five sleep formats, one tooling team.

Each category is developed as a private mould. Start from a base platform or bring your own structure, and we will quote tooling and assembly.

Small white sleep earbuds resting in an open charging case on linen

Sleep Earbuds

Low-profile in-ear audio that stays comfortable through the night.

  • Bluetooth 5.3
  • 6 h + 20 h case
  • Side-sleep fit
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A pair of grey silicone sleep earplugs on a white surface

Silicone Sleep Earplugs

Soft silicone plugs that block sound without pressure in the canal.

  • Shore 30A silicone
  • 3 tip sizes
  • Washable
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Ultra-flat sleep earbuds resting on a white pillow

Side-Sleeper Earbuds

An ultra-flat housing built to sit against a pillow, not into the ear.

  • 11 mm profile
  • Soft tip seal
  • Pillow tested
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Soft fabric sleep headband headphones on white bedding

Sleep Headband

Flat speakers inside a soft fabric band for people who cannot wear in-ear.

  • Washable cover
  • 10 h playback
  • No ear pressure
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Custom moulded silicone earplugs with a small storage case

Custom-Moulded Earplugs

Moulded to the buyer's ear data, with a serviceable acoustic filter.

  • Scan or putty intake
  • Filter option
  • Pair numbering
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The work that keeps it quiet and flat.

Fit, isolation and sound are measured on the bench before tooling, then confirmed on the pilot line.

Discuss a project
  • 01

    Side-sleep cavity design

    Housing height, tip angle and contact area are set so the product sits against a pillow without pressing the canal wall.

  • 02

    Passive isolation and silicone hardness

    Silicone hardness and wall thickness are balanced for blocking and comfort, then measured on an acoustic test head.

  • 03

    Low-frequency sleep ANC

    Active reduction is tuned for steady hum from fans, traffic and aircraft rather than for street noise.

  • 04

    Overnight battery and heat

    Cell capacity and charge profile are set for a full night of playback, with surface temperature checked on the pilot run.

  • 05

    Silicone moulding and finish

    Tooling, flash control and surface texture are agreed on samples so the part stays clean after months of use.

Documents follow the model and the market.

Test reports and declarations are issued against the final build, because radio, materials and firmware change the file set. Tell us where the goods land and we list what applies.

CE

European Union

Documents prepared for the final model and build configuration.

FCC

United States

Radio and EMC test reports prepared per shipped variant.

RoHS

Materials

Restricted substance declarations collected from our suppliers.

REACH

Chemicals

Substance statements issued for the materials used in each build.

UKCA

United Kingdom

Marking and technical file prepared for UK importers.

BQB

Bluetooth

Qualification evidence for the module and firmware shipped.

Documents are provided per target market. Certificates are issued against the final model and configuration, so the file set for a new tooling project is confirmed during sampling.

Your brand on the silicone, your decisions in the sound.

  • ID and mechanical design

    Industrial design, flat-housing structure and tooling drawings developed against your target cost and fit.

  • Acoustic tuning

    Earplug geometry, silicone hardness and tip sizes developed and sampled for your market.

  • Logo and packaging

    Driver selection, chamber tuning and masking profiles agreed on samples before mass production.

  • Firmware and features

    Housing finish, logo application, manual and carton artwork handled as part of the order.

How a project runs

  1. 01

    Brief and specification

    We agree the product type, target cost, market and volume band, then return a specification and quotation.

  2. 02

    Tooling and samples

    Structure design, silicone or plastic moulds and first samples, with acoustic tuning carried out on the bench.

  3. 03

    Pilot run and validation

    A small production run to confirm assembly, drop, charge cycle and ingress performance.

  4. 04

    Mass production and shipping

    Batch production, inspection and export packing, with documents prepared for your market.

Send your brief

Send the brief, get a quoted configuration.

Model, market and quantity are enough to start. We reply with structure options, MOQ, sampling time and a shipping route for your destination.

Or write directly to sales@gadroaudio.com

Direct contact

Phone
Shared on request with the quotation
Office
Kowloon, Hong Kong
Response
We reply within one business day.

We work with importers, private-label brands and retail buyers. Sample orders are reviewed case by case; volume pricing is quoted against the final specification.

GADRO 佳卓 quotation form and factory profile.