Document Overview
Document Overview This page presents the Supplier’s Declaration of Conformity (SDoC) issued under the FCC regulatory framework for the ETENWOLF S3 inflator pump. The document was prepared and issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited testing laboratory, on July 22, 2025.…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- North America: FCC / UL
Document Overview
This page presents the Supplier’s Declaration of Conformity (SDoC) issued under the FCC regulatory framework for the ETENWOLF S3 inflator pump. The document was prepared and issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited testing laboratory, on July 22, 2025. The certification confirms that the device has been evaluated against the applicable United States Federal Communications Commission (FCC) radio frequency emissions requirements and found compliant prior to marketing in the USA.
| Field | Detail |
|---|---|
| Document Type | FCC Supplier’s Declaration of Conformity (SDoC) |
| Registration Number | WTH25H07183671 |
| Reference Number | WTH25H07183671E |
| Issuing Laboratory | Waltek Testing Group HCT (Shenzhen) Co., Ltd. |
| Issue Date | July 22, 2025 |
| Signed By | Tony Wu, General Manager |
| Regulatory Scope | United States – FCC Part 15 Subpart B (Unintentional Radiators) |
Product Information
The certified product is the ETENWOLF S3 Cordless Tire Inflator, manufactured and distributed by Guangdong Bestek Technology Co., Ltd. The S3 is a compact, battery-powered inflator pump designed for inflating car tires, bicycle tires, balls, and other inflatables without requiring a 12 V car socket or wall outlet.
| Attribute | Value |
|---|---|
| Product Name | Inflator Pump |
| Trade Mark | N/A |
| Model | S3 |
| Input Rating | DC 5 V / 3 A; DC 9 V / 1.5 A |
| Output Rating | USB-A: DC 5 V / 2 A |
| Applicant / Holder | Guangdong Bestek Technology Co., Ltd. |
| Manufacturer | Guangdong Bestek Technology Co., Ltd. |
| Manufacturer Address | No.1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China |
Key Details
The FCC SDoC process requires the responsible party to demonstrate that the device complies with the limits for unintentional radiators as defined in 47 CFR Part 15 Subpart B. Below is a summary of the key compliance findings and procedural details documented in reference WTH25H07183671E.
| Item | Description |
|---|---|
| Test Standard | 47 CFR Part 15 Subpart B (October 2020 edition) |
| Measurement Procedure | ANSI C63.4:2014 + A1:2017 |
| Compliance Result | Compliant – device found to meet all applicable limits |
| Labeling Requirement | Label must comply with Section 15.19(a) labeling requirements |
| FCC Logo Use | Voluntary; permitted only for products that fully comply with SDoC procedures |
| Verification Basis | Single test of a production sample; does not imply assessment of whole production |
| Declaration Type | Verification of Conformity (VoC) supporting SDoC per FCC Section 2.906 |
As a condition of the SDoC, the responsible party (Guangdong Bestek Technology Co., Ltd.) is required to retain the test report and all supporting compliance documentation and make them available to the Federal Communications Commission (FCC) upon request.
Standards & Compliance
The ETENWOLF S3 was tested and declared compliant with the following regulatory standards and measurement procedures:
| Standard | Description | Applicability |
|---|---|---|
| 47 CFR Part 15 | FCC Rules – Radio Frequency Devices | General RF device regulation for US market |
| 47 CFR Part 15 Subpart B (Oct. 2020) | Unintentional Radiators – conducted and radiated emissions limits | Primary compliance standard for this device class |
| ANSI C63.4:2014 + A1:2017 | Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment | Test measurement methodology |
| FCC Section 2.906 | Supplier’s Declaration of Conformity procedures | Authorization pathway for SDoC-eligible devices |
| FCC Section 15.19(a) | Labeling requirements for Part 15 devices | Mandatory product labeling on the S3 unit |
Validity & Certification Body
The Verification of Conformity (VoC) documented in reference WTH25H07183671E was issued on July 22, 2025 and remains valid subject to the following conditions:
- The product design, circuitry, and components remain unchanged from the tested sample.
- The responsible party continues to hold all test reports and compliance records and makes them available to the FCC upon request.
- The device is labeled in accordance with FCC Section 15.19(a) before being placed on the US market.
- Any material change to the product requires re-evaluation and issuance of a new SDoC.
| Field | Detail |
|---|---|
| Issuing Body | Waltek Testing Group HCT (Shenzhen) Co., Ltd. |
| Laboratory Contact (Tel) | 0755-84616666 |
| Service Hotline | 400-0066-989 |
| Laboratory Email | [email protected] |
| Authorized Signatory | Tony Wu, General Manager |
| Issue Date | July 22, 2025 |
| Registration No. | WTH25H07183671 |
| Reference No. | WTH25H07183671E |
Frequently Asked Questions
- What does FCC SDoC mean for the ETENWOLF S3 inflator?
-
FCC SDoC (Supplier’s Declaration of Conformity) means that Guangdong Bestek Technology Co., Ltd., as the responsible party, has tested the ETENWOLF S3 against FCC Part 15 Subpart B limits for unintentional radio frequency emissions and self-declares that the device complies. This authorization pathway, governed by FCC Section 2.906, allows the S3 to be legally marketed and sold in the United States without requiring a separate FCC grant of equipment authorization.
- What test standard was used to certify the S3?
-
The S3 was tested according to 47 CFR Part 15 Subpart B (October 2020), which governs unintentional radiators, using the measurement procedure defined in ANSI C63.4:2014 + A1:2017. These standards set limits for conducted and radiated electromagnetic emissions from low-voltage electronic equipment to prevent interference with licensed radio services.
- Does the FCC SDoC certificate cover all units produced?
-
No. As stated in the certificate, the Verification of Conformity (VoC) referenced as WTH25H07183671E is based on a single test of a representative production sample. It does not constitute an assessment of the entire production run. The responsible party is obligated to ensure ongoing production conformance and to maintain test records available for FCC review upon request.
- Can the FCC logo be printed on the ETENWOLF S3?
-
Use of the official FCC logo on the ETENWOLF S3 is voluntary under the SDoC pathway. However, the product label is still required to comply with the mandatory text labeling requirements of FCC Section 15.19(a), which must appear on the device before it is offered for sale in the United States. The FCC logo may only be used if the product fully complies with all SDoC procedures.
Related Documents
The following certification types are commonly required or recommended for a cordless inflator pump such as the ETENWOLF S3 to demonstrate compliance across global markets:
| Document Type | Standard / Authority | Market / Purpose |
|---|---|---|
| CE Declaration of Conformity | CE Marking – EMC Directive 2014/30/EU, LVD 2014/35/EU | European Union – electromagnetic compatibility and low-voltage safety |
| UN 38.3 Battery Test Report | UN 38.3 – UN Manual of Tests and Criteria | Global – lithium battery safety for transport |
| RoHS Compliance Certificate | RoHS Directive 2011/65/EU | European Union – restriction of hazardous substances |
| REACH Compliance Statement | REACH Regulation (EC) No 1907/2006 | European Union – chemical safety in products |
| KC Certification | KC Mark – Korean Standards | South Korea – electrical safety and EMC |
| IEC 62368-1 Test Report | IEC 62368-1 – Audio/Video, IT and Communications Equipment Safety | Global – safety standard for equipment with USB power output |
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