FCC ID 2BRDE-ECHOPRO
AI Voice Recorder
by Hangzhou Humpback Whale Technology Co., Ltd.
Grantee Code: 2BRDE Product Code: ECHOPRO
Latest application date: 2025-09-25
FCC ID Device Details
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-09-25 |
| 2402-2480 MHz | Original Equipment | 2025-09-25 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Users Manual | Users Manual | 2025-09-25 | PDF 384.1 KB |
| Internal Photos | Internal Photos | 2025-09-25 | PDF 316.6 KB |
| External Photos | External Photos | 2025-09-25 | PDF 674.1 KB |
| ID Label/Location Info | ID Label/Location Info | 2025-09-25 | PDF 56.1 KB |
| Test Setup Photos | Test Setup Photos | 2025-09-25 | PDF 276.5 KB |
| ANT Test Report | Test Report | 2025-09-25 | PDF 744.4 KB |
| Test Report1 | Test Report | 2025-09-25 | PDF 3.8 MB |
| Test Report1 | Test Report | 2025-09-25 | PDF 5.8 MB |
| Test Report2 | Test Report | 2025-09-25 | PDF 647.8 KB |
| Test Report2 | Test Report | 2025-09-25 | PDF 644.4 KB |
| Attestation Statements | Attestation Statements | 2025-09-25 | PDF 193 KB |
| US agent | Attestation Statements | 2025-09-25 | PDF 204 KB |
| Agent Authorization | Cover Letter(s) | 2025-09-25 | PDF 127 KB |
| Long term Confidentiality Letter | Cover Letter(s) | 2025-09-25 | PDF 148.5 KB |
| RF Exposure Info | RF Exposure Info | 2025-09-25 | PDF 121 KB |
| Block Diagram Metadata only | Block Diagram | PDF 66.9 KB | |
| Schematics Metadata only | Schematics | PDF 142.4 KB | |
| Operational Description Metadata only | Operational Description | PDF 48.7 KB |
Application Information
| Application ID | mkjTyOF8Weqqy1tBHfnA9Q== |
|---|---|
| Final Action Date | 2025-09-25 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037340775 |
| Model | ECHOPRO |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | AI Voice Recorder |
| Responsible Party | Ying Zeng, yingzeng@whale.im |
| Technical Contact | Ying Zeng, Hangzhou Humpback Whale Technology Co., Ltd., yingzeng@whale.im |
| Test Firm | Lynn Su, Eurofins Electrical Testing Service (Shenzhen) Co., Lynn.su@cpt.eurofinscn.com |
| TCB Email | tcb@metlabs.com |
| 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 |
|---|---|---|
| mkjTyOF8Weqqy1tBHfnA9Q== | 2025-09-25 | Original Equipment |
| +8e9AVqn7rrxeB3YsiB/DA== | 2025-09-25 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application mkjTyOF8Weqqy1tBHfnA9Q==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 09/25/2025 Application Dated: 09/25/2025 |
| Hangzhou Humpback Whale Technology Co., Ltd. |
| Room 901,Building No.4,666 2nd Jianshe Rd,Xiaoshan |
| Economic Technological Development Zone,Hangzhou |
| Hangzhou, China |
| Attention: Ying Zeng , |
| 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: | 2BRDE-ECHOPRO |
| Name of Grantee: | Hangzhou Humpback Whale Technology Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | AI Voice Recorder |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.001236 |
| Output Power listed is conducted. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application +8e9AVqn7rrxeB3YsiB/DA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230-3432 |
Date of Grant: 09/25/2025 Application Dated: 09/25/2025 |
| Hangzhou Humpback Whale Technology Co., Ltd. |
| Room 901,Building No.4,666 2nd Jianshe Rd,Xiaoshan |
| Economic Technological Development Zone,Hangzhou |
| Hangzhou, China |
| Attention: Ying Zeng , |
| 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: | 2BRDE-ECHOPRO |
| Name of Grantee: | Hangzhou Humpback Whale Technology Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | AI Voice Recorder |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.001177 |
| Output Power listed is conducted. This device has 1 MHz MHz and 2 MHz bandwidth modes. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |