Document Overview
Document Overview This page presents the Verification of Conformity (VoC) and Supplier’s Declaration of Conformity (SDoC) issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd. for the ETENWOLF S0 portable mini bicycle pump. The document confirms that the product has been evaluated against United States…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- North America: FCC / UL
Document Overview
This page presents the Verification of Conformity (VoC) and Supplier’s Declaration of Conformity (SDoC) issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd. for the ETENWOLF S0 portable mini bicycle pump. The document confirms that the product has been evaluated against United States Federal Communications Commission (FCC) requirements and found compliant with 47 CFR Part 15, Subpart B.
- Document Type: Verification of Conformity (VoC) / Supplier’s Declaration of Conformity (SDoC)
- Issuing Body: Waltek Testing Group HCT (Shenzhen) Co., Ltd.
- Registration No.: WTH25H09245622
- Reference No.: WTH25H09245622E
- Issue Date: September 19, 2025
- Scope: Radio frequency emissions compliance for unintentional radiators sold in the United States market
Product Information
The certified product is the ETENWOLF S0 Portable Mini Bicycle Pump, a compact cordless inflation device designed for bicycles and other inflatables. Below are the key product details as recorded in the certificate.
| Field | Details |
|---|---|
| Product Name | Mini Bicycle Pump |
| Model(s) | S0 / P1 / M0 |
| Trade Mark | N/A |
| Input Rating | DC 5V |
| 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 |
The ETENWOLF S0 operates on a DC 5V input, making it compatible with standard USB charging infrastructure. Its compact form factor makes it a popular portable inflation solution for cyclists and outdoor enthusiasts.
Key Details
The following table summarises the core compliance information documented in certificate reference WTH25H09245622E.
| Parameter | Value |
|---|---|
| Registration No. | WTH25H09245622 |
| Reference No. | WTH25H09245622E |
| Compliance Framework | FCC Rules and Regulations, Title 47 – Telecommunications |
| Applicable Part | 47 CFR Part 15, Subpart B – Unintentional Radiators |
| Measurement Procedure | ANSI C63.4:2014 + A1:2017 |
| Authorization Type | Supplier’s Declaration of Conformity (SDoC) |
| Labeling Requirement | Section 15.19(a) – FCC labeling required; FCC logo optional under full SDoC compliance |
| Signed By | Tony Wu, General Manager |
| Date Signed | September 19, 2025 |
Per the supplementary compliance information stated in the certificate, the responsible party (Guangdong Bestek Technology Co., LTD) is required to retain the test report and supporting documentation and provide them to the Federal Communications Commission (FCC) upon request. The SDoC must be provided in accordance with Section 2.906 of the FCC rules prior to marketing the device in the United States.
Standards & Compliance
The ETENWOLF S0 was tested and verified against the following regulatory standards and measurement procedures.
- 47 CFR Part 15, Subpart B (October 2020 edition) – Governs unintentional radiators, setting limits for radiated and conducted emissions from digital devices to prevent harmful interference with licensed radio services.
- ANSI C63.4:2014 + A1:2017 – The American National Standard measurement procedure for conducted and radiated emissions from unintentional and intentional radiators. This standard defines the test methods, test sites, instrumentation, and procedures used to demonstrate compliance with FCC Part 15 limits.
- FCC Section 15.19(a) – Labeling requirements mandating that devices subject to Part 15 bear appropriate compliance statements on the product label.
- FCC Section 2.906 – Defines the Supplier’s Declaration of Conformity process, under which the responsible party self-certifies compliance and retains documentation for FCC audit purposes.
The VoC confirms the device was found compliant with all applicable emission limits. As an SDoC-authorized device, the ETENWOLF S0 may voluntarily display the FCC logo, provided it fully adheres to SDoC procedures.
Validity & Certification Body
The Verification of Conformity bearing reference number WTH25H09245622E was issued on September 19, 2025 and signed by Tony Wu, General Manager of Waltek Testing Group HCT (Shenzhen) Co., Ltd.
Important validity notes as stated in the certificate:
- The VoC is based on a single test of a representative sample of the above-mentioned device. It does not imply an assessment of the entire production run.
- The SDoC authorization remains valid as long as the responsible party can produce the test report and supporting compliance evidence upon FCC request.
- Any change to the product design, components, or intended use may require re-evaluation and re-issuance of compliance documentation.
About the Test Laboratory
- Laboratory Name: Waltek Testing Group HCT (Shenzhen) Co., Ltd.
- Telephone: 0755-84616666
- Service Hotline: 400-0066-989
- Email: [email protected]
- Website: http://www.hct-test.com
Waltek Testing Group HCT is an accredited third-party testing and certification laboratory providing compliance testing services for FCC, CE, and other international regulatory frameworks.
Frequently Asked Questions
- What does the FCC SDoC certificate for the ETENWOLF S0 mean?
- It means that the ETENWOLF S0 Mini Bicycle Pump has been tested by an accredited laboratory and found to comply with FCC Part 15 Subpart B limits for unintentional radio frequency emissions. The responsible party — Guangdong Bestek Technology Co., LTD — has declared conformity under the Supplier’s Declaration of Conformity process, reference number WTH25H09245622E, allowing the product to be legally marketed in the United States.
- What is the difference between FCC SDoC and FCC ID certification?
- FCC ID certification requires third-party review and FCC approval before marketing, resulting in a unique FCC ID number on the product. SDoC (Supplier’s Declaration of Conformity) is a self-certification path for certain lower-risk device categories, such as unintentional radiators under Part 15 Subpart B. The responsible party conducts or commissions testing, retains the documentation, and declares compliance without prior FCC approval — but must provide evidence upon FCC request.
- Which test standard was used to evaluate the ETENWOLF S0?
- The device was tested per 47 CFR Part 15 Subpart B (October 2020) using the measurement procedure defined in ANSI C63.4:2014 + A1:2017. These standards define emission limits and test methods for unintentional radiators to ensure they do not cause harmful interference to licensed radio communications.
- Does the FCC certificate cover all production units of the ETENWOLF S0?
- No. As explicitly stated in certificate WTH25H09245622E, the VoC is based on a single test of a representative sample and does not imply an assessment of the entire production. ETENWOLF and the responsible party are expected to maintain production quality controls to ensure ongoing compliance across all manufactured units.
Related Documents
The ETENWOLF S0 Mini Bicycle Pump is a battery-powered electronic device. In addition to the FCC SDoC certificate (WTH25H09245622E), the following certification and compliance documents are typically required or recommended for this product category:
- CE Declaration of Conformity – Required for marketing in the European Economic Area, covering EMC (2014/30/EU), Low Voltage (2014/35/EU), and Radio Equipment (2014/53/EU) directives as applicable.
- UN 38.3 Battery Transport Test Report – Required for the safe air and ground transportation of lithium-ion battery cells or packs contained within the pump.
- RoHS Compliance Certificate – Confirms the product meets EU RoHS Directive 2011/65/EU restrictions on hazardous substances in electrical and electronic equipment.
- REACH SVHC Declaration – Documents compliance with REACH Regulation (EC) No 1907/2006 regarding Substances of Very High Concern.
- KC Certification – Required for entry into the South Korean market, covering electromagnetic compatibility and electrical safety standards.
- IEC 62133 / Battery Safety Test Report – Safety testing for rechargeable lithium battery systems used in portable devices.
Document Pages
