FCC ID 2A9OO-U412CB
Active Subwoofer
by Ultimea Technology (Shenzhen) Limited
Grantee Code: 2A9OO Product Code: U412CB
Latest application date: 2026-08-03
FCC ID Device Details
| FCC ID | 2A9OO-U412CB |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2A9OO |
| Product Code | U412CB |
| Applicant Business | Ultimea Technology (Shenzhen) Limited 🇨🇳 |
| Related Domains |  substanbo.com  ultimea.com |
| Equipment Class | Active Subwoofer |
| Test Firm | Shenzhen Huaxia Testing Technology Co., Ltd |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-08-03 |
| 2402-2480 MHz | Original Equipment | 2026-08-03 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-08-03 | PDF 4 MB |
| Internal photos | Internal Photos | 2026-08-03 | PDF 493.1 KB |
| External photos | External Photos | 2026-08-03 | PDF 485.7 KB |
| Label and label location | ID Label/Location Info | 2026-08-03 | PDF 1.6 MB |
| Test setup photos | Test Setup Photos | 2026-08-03 | PDF 432.8 KB |
| Antenna information | Test Report | 2026-08-03 | PDF 429.8 KB |
| Appendix test data BT | Test Report | 2026-08-03 | PDF 5.7 MB |
| Appendix test data BT LE | Test Report | 2026-08-03 | PDF 1.8 MB |
| Test Report BT | Test Report | 2026-08-03 | PDF 1.5 MB |
| Test Report BT LE | Test Report | 2026-08-03 | PDF 1.4 MB |
| Agent attestation letter | Attestation Statements | 2026-08-03 | PDF 126.6 KB |
| Covered equipment letter | Attestation Statements | 2026-08-03 | PDF 254.6 KB |
| Due digilence letter | Attestation Statements | 2026-08-03 | PDF 260.9 KB |
| Confidentiality request letter | Cover Letter(s) | 2026-08-03 | PDF 253 KB |
| Letter of declaration model difference | Cover Letter(s) | 2026-08-03 | PDF 77.5 KB |
| RF exposure evaluation | RF Exposure Info | 2026-08-03 | PDF 327.1 KB |
| Block diagram Metadata only | Block Diagram | PDF 355.2 KB | |
| Schematic Metadata only | Schematics | PDF 280.5 KB | |
| Operation description Metadata only | Operational Description | PDF 104.9 KB |
Application Information
| Application ID | xeVFuf5Zb0UAMOebrOT/MQ== |
|---|---|
| Final Action Date | 2026-08-03 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0033166620 |
| Model | U412CB |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Active Subwoofer |
| Responsible Party | Yoyo Yu, Yoyo.yu@substanbo.com , 0755-23762801 |
| Non-Technical Contact | Monica Lin, Ultimea Inc., yoyo.yu@ultimea.com , (888)598-8875 |
| Test Firm | Jack Ai, Shenzhen Huaxia Testing Technology Co., Ltd, szcqa@cqa-cert.com  , +8613902988375 |
| TCB Email | o.kneip@kl-certification.de  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| 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 |
|---|---|---|
| xeVFuf5Zb0UAMOebrOT/MQ== | 2026-08-03 | Original Equipment |
| aKCWSdI3RnPNT2Z6tXHd6g== | 2026-08-03 | Original Equipment |
Grants
TCB Grant - Application xeVFuf5Zb0UAMOebrOT/MQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
KL-Certification GmbH Heinrich-Hertz-Allee 7 St. Ingbert, 66386 Germany |
Date of Grant: 08/03/2026 Application Dated: 08/03/2026 |
| Ultimea Technology (Shenzhen) Limited |
| 20th Floor,Building4,Tianan Cloud Park, |
| Bantian St.,Longgang District, |
| Shenzhen, 518000 China |
| Attention: Yoyo Yu , |
| 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: | 2A9OO-U412CB |
| Name of Grantee: | Ultimea Technology (Shenzhen) Limited |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Active Subwoofer |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0064 |
| Power listed is maximum peak conducted output power. The product must be installed such that its antenna(s) can provide a separation distance of at least 20 cm from all persons and must not transmit simultaneously with any other transmitter, except in accordance with FCC multi-transmitter product procedures or as described in this filing. |
TCB Grant - Application aKCWSdI3RnPNT2Z6tXHd6g==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
KL-Certification GmbH Heinrich-Hertz-Allee 7 St. Ingbert, 66386 Germany |
Date of Grant: 08/03/2026 Application Dated: 08/03/2026 |
| Ultimea Technology (Shenzhen) Limited |
| 20th Floor,Building4,Tianan Cloud Park, |
| Bantian St.,Longgang District, |
| Shenzhen, 518000 China |
| Attention: Yoyo Yu , |
| 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: | 2A9OO-U412CB |
| Name of Grantee: | Ultimea Technology (Shenzhen) Limited |
| Equipment Class: | Digital Transmission System |
| Notes: | Active Subwoofer |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0063 |
| Power listed is maximum peak conducted output power. The product must be installed such that its antenna(s) can provide a separation distance of at least 20 cm from all persons and must not transmit simultaneously with any other transmitter, except in accordance with FCC multi-transmitter product procedures or as described in this filing. |