FCC ID VYYDD6600
BLE & Thread Module
by NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD.
Grantee Code: VYY Product Code: DD6600
Latest application date: 2026-07-07
FCC ID Device Details
| FCC ID | VYYDD6600 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | VYY |
| Product Code | DD6600 |
| Applicant Business | NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. 🇨🇳 |
| Related Domains |  dooya.com  custombrandsgroup.com |
| Equipment Class | BLE & Thread Module |
| Test Firm | Shenzhen PSI Testing Co., Ltd. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2405-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2026-07-07 |
| 2402-2480 MHz | Original Equipment | 2025-02-21 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2025-08-17 | PDF 621.6 KB |
| Internal Photos | Internal Photos | 2025-08-17 | PDF 381.8 KB |
| External Photos | External Photos | 2025-08-17 | PDF 291 KB |
| ID Label and Location | ID Label/Location Info | 2025-02-21 | PDF 133.3 KB |
| Test Setup Photos | Test Setup Photos | 2025-08-17 | PDF 696 KB |
| Antenna Specification_ANT7020LL05R2400A | Test Report | 2026-07-07 | PDF 711.2 KB |
| Antenna Specification_K11 SHZD2400-2U-K11 | Test Report | 2026-07-07 | PDF 321.8 KB |
| Antenna Specification_SHZD2400-1U-K3-1 | Test Report | 2026-07-07 | PDF 1.1 MB |
| Test Report_Part 1 of 3 | Test Report | 2026-07-07 | PDF 3.1 MB |
| Test Report_Part 2 of 3 | Test Report | 2026-07-07 | PDF 5.2 MB |
| Test Report_Part 3 of 3 | Test Report | 2026-07-07 | PDF 4.8 MB |
| Antenna Gain Info | Test Report | 2025-02-21 | PDF 299.3 KB |
| Test Report | Test Report | 2025-02-21 | PDF 3.6 MB |
| Attestation of US Agent | Attestation Statements | 2026-07-07 | PDF 254 KB |
| Not Covered Entity Applicant Attestation | Attestation Statements | 2026-07-07 | PDF 158.1 KB |
| Not Covered Equipment Attestation | Attestation Statements | 2026-07-07 | PDF 150.9 KB |
| Agency Letter | Cover Letter(s) | 2026-07-07 | PDF 2.7 MB |
| C2PC Letter | Cover Letter(s) | 2026-07-07 | PDF 98.1 KB |
| Agency Letter | Cover Letter(s) | 2025-02-21 | PDF 260.3 KB |
| Confidentiality Letter | Cover Letter(s) | 2025-02-21 | PDF 306.3 KB |
| Modular Approval Letter | Cover Letter(s) | 2025-02-21 | PDF 538.3 KB |
| RF Exposure Info | RF Exposure Info | 2026-07-07 | PDF 874.4 KB |
| RF Exposure Info | RF Exposure Info | 2025-02-21 | PDF 611.1 KB |
| User Manual Metadata only | Users Manual | 2027-01-03 | PDF 681.5 KB |
| External Photos Metadata only | External Photos | 2027-01-03 | PDF 626.8 KB |
| Block Diagram Metadata only | Block Diagram | PDF 74.2 KB | |
| Schematics Metadata only | Schematics | PDF 1.7 MB | |
| Operational Description Metadata only | Operational Description | PDF 81 KB | |
| Parts List Metadata only | Parts List/Tune Up Info | PDF 229.8 KB |
Application Information
| Application ID | HV5divRAPOR1X8o+yeWpKQ== |
|---|---|
| Final Action Date | 2026-07-07 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0017345455 |
| Model | DD6600 |
| Frequency Range | 2405-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | BLE & Thread Module |
| Responsible Party | xiaofang Liao, st2j@dooya.com , 86-574-86571666 |
| Technical Contact | Xiaofang Liao, Ningbo Dooya Mechanic & Electronic Technology Co.,, Dora@dooya.com , 86-0574-26286921 |
| Non-Technical Contact | Phoenix Lin, Turnils North America, Phoenix.Lin@custombrandsgroup.com , 14044993854 |
| Test Firm | Simple Guan, Shenzhen PSI Testing Co., Ltd., simple.guan@psi-lab.cn  , 86-0755-23019820 |
| TCB Email | tcb-hotline@tuv.com  |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Single Modular Approval |
| 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 |
|---|---|---|
| HV5divRAPOR1X8o+yeWpKQ== | 2026-07-07 | Class II permissive change or modification of presently authorized equipment |
| ETPoGdK86tF/9kvU12P2mA== | 2025-02-21 | Original Equipment |
Equipment Authorization
| Frequency | Output |
|---|---|
| 2402-2480 MHz | 0.0038000 |
Grants
TCB Grant - Application HV5divRAPOR1X8o+yeWpKQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV Rheinland of North America, Inc. 1279 Quarry Lane Suite A Pleasanton, CA 94566 |
Date of Grant: 07/07/2026 Application Dated: 07/07/2026 |
| NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. |
| No.168 Shengguang Road, Luotuo, Zhenhai, Ningbo |
| ZHEJIANG, China |
| Attention: xiaofang Liao , 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: | VYYDD6600 |
| Name of Grantee: | NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. |
| Equipment Class: | Digital Transmission System |
| Notes: | BLE & Thread Module |
| Modular Type: | Single Modular |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0038 | |||
| 15C | 2405.0 - 2480.0 | 0.0037 |
| Class 2 Permissive Change to add the alternative antennas and enable the thread function. Single Modular Approval. Power output listed is conducted. This grant is valid only when the module is sold to OEM integrators and must be installed by the OEM integrators. The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. Co-location of this module with other transmitters that operate simultaneously are required to be evaluated using the FCC multi-transmitter procedures. OEM integrators must be provided with transmitter operating conditions for satisfying RF exposure compliance. Only the antenna listed in this filing can be used. The Grantee is responsible for providing the documentation required for modular use. The responsibility for the use of this module, in all configurations utilized or contemplated, remains with the Grantee. |
TCB Grant - Application ETPoGdK86tF/9kvU12P2mA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
TUV Rheinland of North America, Inc. 1279 Quarry Lane Suite A Pleasanton, CA 94566 |
Date of Grant: 02/21/2025 Application Dated: 02/21/2025 |
| NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. |
| No.168 Shengguang Road, Luotuo, Zhenhai, Ningbo |
| ZHEJIANG, China |
| Attention: xiaofang Liao , 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: | VYYDD6600 |
| Name of Grantee: | NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. |
| Equipment Class: | Digital Transmission System |
| Notes: | BLE Module |
| Modular Type: | Single Modular |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0038 |
| Single Modular Approval. Power output listed is conducted. This grant is valid only when the module is sold to OEM integrators and must be installed by the OEM integrators. The antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and not be co-located with any other transmitters except in accordance with FCC multi-transmitter product procedures. OEM integrators must be provided with transmitter operating conditions for satisfying RF exposure compliance. Only the antenna listed in this filing can be used. The Grantee is responsible for providing the documentation required for modular use. The responsibility for the use of this module, in all configurations utilized or contemplated, remains with the Grantee. |