FCC ID 2AOBQ-HIBYFD3
USB HEADPHONE AMPLIFIER
by Dongguan SmartAction Technology Co.,Ltd
Grantee Code: 2AOBQ Product Code: HIBYFD3
Latest application date: 2026-11-13
FCC ID Device Details
| FCC ID | 2AOBQ-HIBYFD3 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AOBQ |
| Product Code | HIBYFD3 |
| Applicant Business | Dongguan SmartAction Technology Co.,Ltd 🇨🇳 |
| Related Domains |  hiby.com  fccusagent.com |
| Equipment Class | USB HEADPHONE AMPLIFIER |
| Test Firm | Shenzhen Morlab Communications Technology Co. Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-11-13 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Label & location | ID Label/Location Info | 2026-11-13 | PDF 662.4 KB |
| Antenna | Test Report | 2026-11-13 | PDF 927.1 KB |
| SZ26060117W01_SmartAction_HiBy_FD3II_BTclassic_DSS | Test Report | 2026-11-13 | PDF 3.7 MB |
| Attestation_COVERED_EQUIPMENT | Attestation Statements | 2026-11-13 | PDF 119.3 KB |
| Attestation_Letter_US_AGENT | Attestation Statements | 2026-11-13 | PDF 165.8 KB |
| Confidentiality | Cover Letter(s) | 2026-11-13 | PDF 192.1 KB |
| POA | Cover Letter(s) | 2026-11-13 | PDF 118.4 KB |
| SDoC | Cover Letter(s) | 2026-11-13 | PDF 137.3 KB |
| SZ26060117S01_SmartAction_HiBy_FD3II_FCC_RF_Exposure | RF Exposure Info | 2026-11-13 | PDF 312.7 KB |
| UM Metadata only | Users Manual | 2027-05-12 | PDF 3.7 MB |
| Internal Photos Metadata only | Internal Photos | 2027-05-12 | PDF 2.7 MB |
| External Photos Metadata only | External Photos | 2027-05-12 | PDF 476.3 KB |
| Test Setup Photos_DSS Metadata only | Test Setup Photos | 2027-05-12 | PDF 671.1 KB |
| Block Diagram Metadata only | Block Diagram | PDF 37.5 KB | |
| module_Block Diagram Metadata only | Block Diagram | PDF 20.3 KB | |
| module_schematic Metadata only | Schematics | PDF 25.4 KB | |
| schematic Metadata only | Schematics | PDF 150.5 KB | |
| OP Metadata only | Operational Description | PDF 257.8 KB | |
| BOM Metadata only | Parts List/Tune Up Info | PDF 72.1 KB | |
| Module_BOM Metadata only | Parts List/Tune Up Info | PDF 64.2 KB |
Application Information
| Application ID | fssyIteHAuyLwVVTHKFxeg== |
|---|---|
| Final Action Date | 2026-11-13 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0027006931 |
| Model | HIBYFD3 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | USB HEADPHONE AMPLIFIER |
| Responsible Party | Libin Zeng, zlb@hiby.com , +86 0769 23182216 |
| Non-Technical Contact | Tim Payne, FCC US Agent, LLC, Support@FCCUSAgent.com , 708-571-3148 |
| Test Firm | Mr. Su Feng, Shenzhen Morlab Communications Technology Co. Ltd., Zx.sun@morlab.cn  , 86-755-36698566 |
| TCB Email | holger.bentje@nmi-testlab.de  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| fssyIteHAuyLwVVTHKFxeg== | 2026-11-13 | Original Equipment |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.00811 | 15C |
Grants
TCB Grant - Application fssyIteHAuyLwVVTHKFxeg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
NMi TESTLAB GmbH Koenigswinkel 10 32825 Blomberg, Germany |
Date of Grant: 11/13/2026 Application Dated: 11/12/2026 |
| Dongguan SmartAction Technology Co.,Ltd |
| Room 1601, Unit 2, Building 2, No. 58, Dongcheng |
| Section,Huancheng East Road, Dongcheng District, |
| Dongguan, China |
| Attention: Libin Zeng , Manager |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2AOBQ-HIBYFD3 |
| Name of Grantee: | Dongguan SmartAction Technology Co.,Ltd |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | USB HEADPHONE AMPLIFIER |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.00811 |
| Output power is maximum peak conducted. |