Quality & Compliance Dongguan, China

Every Batch Inspected. Every Claim Documented.

We don't just ship what passed the sample — inspection runs on production batches, and we are upfront about which certifications we currently hold — and which we do not.

Every Batch Inspected. Every Claim Documented.
AQL 2.5 · GB II Sampling standard applied to every batch
100% functional test Every unit powered and checked before packing
Certificates with numbers Originals available on request
Inside Our QC Process

What Actually Happens To Your Order.

Four checkpoints, each with its own photo and its own pass criteria — not a single inspection at the very end.

100% Batches inspected before shipment
0 Defects shipped knowingly
AQL 2.5 · GB II Sampling standard on every batch
Every raw material is checked before it touches the line.
1Incoming Material Inspection

Every raw material is checked before it touches the line.

Plastic resin, metal components, and electronics are sampled against spec — material grade, dimensions, appearance — before approval for production.

Material gradeDimension toleranceVisual screening
Spot checks happen while the line is still running.
2In-Process Quality Control

Spot checks happen while the line is still running.

QC staff pull units off the line at set intervals, so a drifting tolerance gets caught mid-batch — not after the whole run is finished.

Interval samplingAssembly checkFunctional spot test
The finished batch is inspected again before it leaves our dock.
3Pre-Shipment Inspection

The finished batch is inspected again before it leaves our dock.

Using AQL sampling, the completed batch is re-checked as a whole — not just the sample approved months earlier.

AQL samplingFunctional testCarton condition check
Every batch is logged, so a later question has an answer.
4Documentation & Traceability

Every batch is logged, so a later question has an answer.

Batch numbers, inspection dates, and results are kept on file and traceable back to the production run.

Batch loggingInspector sign-offRecords on file
Sampling Standard

We Inspect By AQL, Not By Guesswork.

Acceptable Quality Limit (AQL) is the international standard for batch sampling — here is what we apply in practice.

2.5

AQL Level (Major Defects)

The threshold most import compliance teams require for consumer goods.

GB II

Sampling Table

General Inspection Level II under ANSI/ASQ Z1.4 — balances thoroughness with cost.

100%

Batches Sampled

AQL sampling runs on every production batch before shipment — no batch skipped.

Certifications On File

Current Certification Status.

Status varies by product line and by target market — ask us for the certificate that applies to the exact model you are ordering.

CE — EMC Directive 2014/30/EU — certificate CE

CE — EMC Directive 2014/30/EU

Verified
Applies to
WaveCare · S7 Ultra
Certificate No.
PRMS2512339-01EC
Issued by
Shenzhen Promise Test Technology Co., Ltd.
Date
2026-01-09
Ask for the original document →
RoHS — EU 2011/65/EU + (EU) 2015/863 — certificate RoHS

RoHS — EU 2011/65/EU + (EU) 2015/863

Verified
Applies to
Household Teeth Cleaner · S7 Ultra / JY-10
Certificate No.
HRL2606090060701
Issued by
Dongguan Huanren Lab Technology Co., Ltd.
Date
2026-07-07
Ask for the original document →

About the entities named above: QIHAO is the export brand of the entities named on these certificates — Dongguan Seven Good Intelligent Technology Co., Ltd. (CE-EMC) and Dongguan Heyida Technology Trading Co., Ltd. (RoHS). Your proforma invoice and shipping documents are issued by the same legal entity named on the certificate that applies to your order — we confirm this in writing before you pay a deposit.

Certificates are issued against the specific sample submitted for testing, so each document names the model used for that test submission. Certification needs differ by market — for example, EU requirements for a home-use oral care device are not the same as US requirements for a safety accessory. Tell us your target market and the model you intend to order, and we will confirm in writing which document applies before you commit.

What You Get In Writing

Documents With Every Order — Not Just Promises.

A buyer's real risk is not a bad sample — it is finding out after the deposit that the spec, the timing, or the defect terms were never written down. Here is what we put in writing, and when.

Ask for a sample of any of these before you pay a deposit — we send them before production, not after.

Request Sample Documents →
  • Proforma invoice stating the agreed spec, unit price, lead time and defect handling terms
  • Pre-shipment inspection report: batch number, AQL results and defects found
  • Photos and a short video of your finished batch before it is loaded
  • Certificate or test report that applies to the model you are ordering (original on request)
  • Packing list, commercial invoice and export documents prepared on our side
  • Shipping mark / FNSKU label layout confirmed with you before packing
  • Batch records kept on file, so a question months later still has an answer
In-House Checks

What We Test Ourselves — And What Needs A Lab.

These checks run on our own line, on every order. Anything that requires an accredited laboratory is issued by a third-party lab and listed with its certificate number above.

Incoming Material Check

Resin, metal parts and electronics are checked against spec — grade, dimensions, appearance — before they are released to the line.

Aging & Charge Cycle

Battery products run through charge and discharge cycles before packing, so a cell problem surfaces here rather than at your customer.

100% Functional Test

Every single unit is powered on and checked through its functions — not a sample of the batch.

AQL Sampling

Visual and functional sampling to AQL 2.5, General Inspection Level II, on every production batch.

Packaging & Transport Check

Retail carton, drop and stacking checks, plus barcode and label verification before loading.

Batch Records

Batch number, inspection date, inspector sign-off and results kept on file for traceability.

The checks above are our own in-house process. Third-party certificates and lab test reports are listed in the certification section above — the two are not the same thing, and we do not blur them.

Third-Party Inspection

We Welcome Independent Verification.

Don't just take our word for it — we are used to working with third-party inspection agencies and build inspection windows into the production schedule as standard practice.

  • Tell us which agency you use — we will coordinate scheduling directly with them
  • Pre-shipment inspection (PSI) can be arranged at any stage of production
  • Factory audit visits are welcome, in person or via live video walkthrough
We Welcome Independent Verification.
See What Our Reports Actually Look Like.
Documentation

See What Our Reports Actually Look Like.

Every shipment can be accompanied by a written inspection report. Here is what is typically included:

  • Batch number, quantity, and inspection date
  • Visual defect rate (AQL sampling results)
  • Functional test results per product spec
  • Photos of sampled units from the batch
  • Units held back or reworked, listed with the reason
Request A Sample Report →
48hrs
Target report turnaround
100%
Orders photographed before loading
If Something Goes Wrong

Our Defect & Warranty Policy.

1

Report The Issue

Send photos, the batch number, and a short description — we confirm what we are looking at before discussing solutions.

2

Root Cause Check

We check whether it traces back to manufacturing, materials, or handling, and tell you which — in writing.

3

Replacement Or Credit

Confirmed manufacturing defects are covered by replacement units or a credit note on your next order — your choice.

Warranty Terms Confirmed In Writing Before Production Ask us for the current written terms for your product and market.
Ask For The Written Policy →

Sourcing Guides From The Factory Floor.

Practical guides on deposits, defect handling, private label and product design — written by our export team, not a content agency.

FAQ

Quick Answers.

Can I request a copy of your inspection report?

Yes — send us the batch or PO number and we'll share the relevant report.

Do you allow third-party inspection?

Yes. Tell us which agency you use and we'll coordinate the scheduling with them.

What happens if a defect is found?

Contact us with photos and the batch number — see our defect and warranty policy above.

Are all your products certified?

No, and we won't tell you otherwise. The list above shows the current status per product line.

What AQL level do you inspect to?

AQL 2.5 for major defects, using General Inspection Level II (ANSI/ASQ Z1.4).

Can I visit the factory or QC lab?

Yes — in person, or via a live video walkthrough. See our Contact page to arrange a time.

Get In Touch

Ask For The Documentation Before You Commit.

Tell us which market you are shipping to and which certifications matter most — we will tell you honestly what we currently hold.