What does FCC SDoC mean for the ETENWOLF Air3?

FCC SDoC stands for Supplier's Declaration of Conformity. It means the responsible party has tested the Air3 through an accredited laboratory and confirmed it meets FCC CFR 47 Part 15 Subpart B emission limits, allowing it to be legally sold and used in the United States without causing harmful radio frequency interference.

What tests were performed on the Air3, and did it pass?

The Air3 underwent Conducted Emission and Radiated Emission testing at Waltek Testing Group HCT (Shenzhen) Co., Ltd. between 2025-05-27 and 2025-05-29. Both tests passed against FCC Part 15 Subpart B limits. The report was issued on 2025-06-04 under reference number WTH25H05129164E.

Who conducted the FCC testing for the Air3, and is the lab accredited?

Testing was conducted by Waltek Testing Group HCT (Shenzhen) Co., Ltd. in Shenzhen, Guangdong, China. The report was prepared by Snow Zeng and approved by Tony Wu. Contact: service@hct-test.com or 400-0066-989.

Does this FCC report cover all markets, or only the United States?

Report WTH25H05129164E covers only FCC CFR 47 Part 15 Subpart B, which applies to the United States market. Separate compliance documentation such as CE, KC, or other regional certifications would be required for other markets.

FCC SDoC Test Report – ETENWOLF Air3 Portable Air Pump | Reference WTH25H05129164E

Document Overview

Document Overview This article summarizes the official FCC Supplier’s Declaration of Conformity (SDoC) test report for the ETENWOLF Air3 Portable Air Pump. The document is a formal electromagnetic compatibility (EMC) test report issued under the reference number WTH25H05129164E, prepared in accordance with FCC CFR 47…

Document type: Certification Report
Prepared by: Michelle Torres
Published: July 22, 2026
Last reviewed: July 22, 2026
Topics: North America: FCC / UL

Document Overview

This article summarizes the official FCC Supplier’s Declaration of Conformity (SDoC) test report for the ETENWOLF Air3 Portable Air Pump. The document is a formal electromagnetic compatibility (EMC) test report issued under the reference number WTH25H05129164E, prepared in accordance with FCC CFR 47 Part 15 Subpart B.

Document Type: FCC SDoC Test Report
Reference Number: WTH25H05129164E
Test Report Form: TRF FCC CFR 47 Part 15 Subpart B-EMC-001-V01
Internal Form Code: HCT/RF-23-21
Issuing Laboratory: Waltek Testing Group HCT (Shenzhen) Co., Ltd.
Date of Issue: 2025-06-04
Overall Test Result: PASS
Scope: Conducted emission and radiated emission compliance verification for an unintentional radiator device intended for the United States market under FCC Part 15 Subpart B rules.

The report was prepared by Snow Zeng and approved by Tony Wu at Waltek Testing Group HCT (Shenzhen) Co., Ltd., located at Building B, Tianji Industrial Park, 1/F., 2/F. & 3/F., No. 30-9, Laiyin Road, Xinsheng Community, Longgang Subdistrict, Longgang District, Shenzhen, Guangdong, China.

Product Information

The Equipment Under Test (EUT) assessed in this report is the ETENWOLF Air3, a portable air pump designed for consumer and professional inflation applications.

Field	Details
Product Name	Portable Air Pump
Brand / Trade Mark	ETENWOLF (Applicant: Guangdong Bestek Technology Co., Ltd.)
Model Number	Air3
Applicant	Guangdong Bestek Technology Co., Ltd.
Applicant Address	No. 1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China
Manufacturer	Guangdong Bestek Technology Co., Ltd.
Manufacturer Address	No. 1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China
Device Category	Unintentional Radiator
Operating Mode	Mode 1: Charging / Pumping (as described in EUT section)

The Air3 is a compact, rechargeable portable air pump suited for inflating tires, sports equipment, and other inflatables. As an unintentional radiator, it is subject to FCC Part 15 Subpart B emission limits to ensure it does not cause harmful interference to other electronic devices or radio services.

Key Details

The test report covers two primary EMC measurement disciplines: Conducted Emission and Radiated Emission. Both test campaigns returned passing results against the applicable FCC limits.

Test Timeline

Event	Date
Sample Receipt	2025-05-27
Testing Period	2025-05-27 to 2025-05-29
Report Issue Date	2025-06-04

Test Disciplines and Results

Test Section	Test Type	Standard Reference	Result
Section 3	Conducted Emission	FCC CFR 47 Part 15 Subpart B	PASS
Section 4	Radiated Emission	FCC CFR 47 Part 15 Subpart B	PASS

Report Structure Summary

Section 1 – General Information: EUT description, test standards, test summary, methodology, facility details, and version information.
Section 2 – System Test Configuration: Test justification, EUT exercise software, equipment modifications, basic configuration, auxiliary equipment descriptions, and decision rule application.
Section 3 – Conducted Emission: Measurement uncertainty, emission limits, EUT setup, instrument setup, test procedure, equipment list, and test data (covering frequency ranges relevant to Part 15 Subpart B).
Section 4 – Radiated Emission: Measurement uncertainty, emission limits, EUT setup, test receiver setup, test procedure, corrected amplitude and margin calculations, equipment list, and test data.
Appendix A – EUT Photographs: Visual documentation of the Air3 unit under test.
Appendix B – Test Setup Photographs: Documentation of the test environment and equipment configuration.

Decision rules were applied in accordance with standard EMC testing practice, with measurement uncertainty accounted for in the margin calculations documented in Sections 3 and 4 of the full report.

Standards & Compliance

The ETENWOLF Air3 was evaluated against the following regulatory standard:

Standard	Full Title	Applicability
FCC CFR 47 Part 15 Subpart B	Federal Communications Commission – Code of Federal Regulations Title 47, Part 15, Subpart B: Unintentional Radiators	Conducted and radiated emission limits for unintentional digital/electronic devices sold in the United States

Test Methods Applied

Conducted Emission Measurement: Performed using a Line Impedance Stabilization Network (LISN) to measure RF voltages on the power supply lines, comparing results against the FCC Part 15 Subpart B conducted emission limits across the applicable frequency range.
Radiated Emission Measurement: Performed in a qualified test facility (semi-anechoic chamber or equivalent open-area test site) measuring electric field strength at the required distances and comparing against the FCC Part 15 Subpart B radiated emission limits.
Measurement Uncertainty: Documented in Sections 3.1 and 4.1 of the report, applied per standard EMC uncertainty methodology to ensure conservative pass/fail determination.
Decision Rule: Applied as documented in Section 2.6 of the report, consistent with FCC acceptance criteria for SDoC filings.

The FCC SDoC pathway allows responsible parties (in this case Guangdong Bestek Technology Co., Ltd.) to self-declare conformity after successful completion of accredited third-party testing, without requiring direct FCC filing of the test report. The report is retained by the responsible party and made available upon request by the FCC.

Validity & Certification Body

Testing Laboratory

Field	Details
Laboratory Name	Waltek Testing Group HCT (Shenzhen) Co., Ltd.
Laboratory Address	Building B, Tianji Industrial Park, 1/F., 2/F. & 3/F., No. 30-9, Laiyin Road, Xinsheng Community, Longgang Subdistrict, Longgang District, Shenzhen, Guangdong, China
Telephone	0755-84616666
Service Hotline	400-0066-989
Email	[email protected]
Website Reference	http://www.hct-test.com
Prepared By	Snow Zeng
Approved By	Tony Wu

Report Validity

Report Issue Date: 2025-06-04
Reference Number: WTH25H05129164E (to be quoted in all correspondence related to this certification)
Validity Scope: This report is valid for the specific model Air3 as manufactured by Guangdong Bestek Technology Co., Ltd. Any hardware, firmware, or design changes to the product may require re-testing.
Market Applicability: United States (FCC jurisdiction). The SDoC declaration based on this report permits the Air3 to be legally marketed and sold in the US under FCC Part 15 Subpart B as an unintentional radiator.
Document Control: The report is 26 pages in total and was issued under internal form HCT/RF-23-21 using Test Report Form TRF FCC CFR 47 Part 15 Subpart B-EMC-001-V01.

Frequently Asked Questions

What does FCC SDoC mean for the ETENWOLF Air3?: FCC SDoC stands for Supplier’s Declaration of Conformity. It means the manufacturer or responsible party has tested the Air3 through an accredited laboratory and confirmed it meets FCC CFR 47 Part 15 Subpart B emission limits. The product does not require a separate FCC ID but must carry the appropriate SDoC compliance statement. This allows the Air3 to be legally sold and used in the United States without causing harmful radio frequency interference.
What tests were performed on the Air3, and did it pass?: The Air3 underwent two categories of EMC testing: Conducted Emission (Section 3 of the report) and Radiated Emission (Section 4 of the report), both performed at Waltek Testing Group HCT (Shenzhen) Co., Ltd. between 2025-05-27 and 2025-05-29. Both tests returned a PASS result against the FCC Part 15 Subpart B limits, and the full report was issued on 2025-06-04 under reference number WTH25H05129164E.
Who conducted the FCC testing for the Air3, and is the lab accredited?: Testing was conducted by Waltek Testing Group HCT (Shenzhen) Co., Ltd., a professional EMC and RF testing laboratory located in Shenzhen, Guangdong, China. The lab operates under accreditation relevant to FCC SDoC testing requirements. The report was prepared by Snow Zeng and formally approved by Tony Wu. For accreditation verification or inquiries, the laboratory can be contacted at [email protected] or via their service line at 400-0066-989.
Does this FCC report cover all markets, or only the United States?: Report WTH25H05129164E specifically covers compliance with FCC CFR 47 Part 15 Subpart B, which is a United States federal regulation administered by the Federal Communications Commission. It does not cover CE marking for Europe, KC certification for South Korea, or other regional EMC requirements. Separate compliance documentation would be required for those markets.