FCC ID 2BU4K-U4
Essential oil Diffuser
by Shenzhen Xintie E-commerce Co., Ltd.
Grantee Code: 2BU4K Product Code: U4
Latest application date: 2026-03-11
FCC ID Device Details
| FCC ID | 2BU4K-U4 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BU4K |
| Product Code | U4 |
| Applicant Business | Shenzhen Xintie E-commerce Co., Ltd. 🇨🇳 |
| Equipment Class | Essential oil Diffuser |
| Test Firm | SHENZHEN CTA TESTING TECHNOLOGY CO., LTD. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-03-11 |
| 5745-5825 MHz | Original Equipment | 2026-03-11 |
| 2412-2462 MHz | Original Equipment | 2026-03-11 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2026-03-11 | PDF 472.1 KB |
| Internal Photos | Internal Photos | 2026-03-11 | PDF 886.3 KB |
| External Photos | External Photos | 2026-03-11 | PDF 391.5 KB |
| Label and location | ID Label/Location Info | 2026-03-11 | PDF 132.7 KB |
| Test Setup Photos | Test Setup Photos | 2026-03-11 | PDF 448.8 KB |
| Antenna specification | Test Report | 2026-03-11 | PDF 1.2 MB |
| CTA26022500201_Test Report-BT FCC - 3DH5 | Test Report | 2026-03-11 | PDF 3.2 MB |
| CTA26022500202_Test Report-2.4G WIFI N40 | Test Report | 2026-03-11 | PDF 1.8 MB |
| CTA26022500203_Test Report-5.2&5.8G WIFI FCC AC40 | Test Report | 2026-03-11 | PDF 2.3 MB |
| FCC Appendix RF Test Data for 2.4GWIFI_Part1 | Test Report | 2026-03-11 | PDF 5.9 MB |
| FCC Appendix RF Test Data for 2.4GWIFI_Part2 | Test Report | 2026-03-11 | PDF 4.4 MB |
| FCC Appendix RF Test Data for 5GWIFI_Part1 | Test Report | 2026-03-11 | PDF 5.9 MB |
| FCC Appendix RF Test Data for 5GWIFI_Part2 | Test Report | 2026-03-11 | PDF 6 MB |
| FCC Appendix RF Test Data for 5GWIFI_Part3 | Test Report | 2026-03-11 | PDF 5.9 MB |
| FCC Appendix RF Test Data for 5GWIFI_Part4 | Test Report | 2026-03-11 | PDF 3.1 MB |
| FCC Appendix RF Test Data for BT_Part1 | Test Report | 2026-03-11 | PDF 5.9 MB |
| FCC Appendix RF Test Data for BT_Part2 | Test Report | 2026-03-11 | PDF 3.8 MB |
| USA-CoveredEquipmentLetter-Combined_V1.1 | Attestation Statements | 2026-03-11 | PDF 122.8 KB |
| USA-LocalRepLetter_V1.1_2BU4K-U4 | Attestation Statements | 2026-03-11 | PDF 353.4 KB |
| FCC Declaration of Disable WLAN Channel 12 and 13 | Cover Letter(s) | 2026-03-11 | PDF 104.6 KB |
| USA-ConfidentialityRequestLetter_V0.1 | Cover Letter(s) | 2026-03-11 | PDF 104.2 KB |
| USA-NIIDeclarationLetter_V0.1 -Slaver | Cover Letter(s) | 2026-03-11 | PDF 159.6 KB |
| CTA26022500204_RF Exposure-MPE | RF Exposure Info | 2026-03-11 | PDF 707.9 KB |
| Block diagram Metadata only | Block Diagram | PDF 287.7 KB | |
| schematic Metadata only | Schematics | PDF 509.2 KB | |
| Operation Description Metadata only | Operational Description | PDF 250.1 KB | |
| USA-DueDigilenceLetter_V0.1 Metadata only | Operational Description | PDF 144.4 KB | |
| USA-SoftwareSecurityKDB594280D02_Slaver Metadata only | SDR Software/Security Info. | PDF 548.6 KB |
Application Information
| Application ID | wKPVf6+C8k8v67186gbX9Q== |
|---|---|
| Final Action Date | 2026-03-11 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0038118758 |
| Model | U4 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Essential oil Diffuser |
| Responsible Party | Liu He, LC26020501001@126.com  , 18148558131 |
| Non-Technical Contact | Cindy Wu, HOORAY INDUSTRY LLC, cindynewhope@gmail.com  , (626) 910-5808 |
| Test Firm | Eric Wang, SHENZHEN CTA TESTING TECHNOLOGY CO., LTD., wangxulai@cta-test.cn  , 86-755-2322-5875 |
| 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 |
|---|---|---|
| wKPVf6+C8k8v67186gbX9Q== | 2026-03-11 | Original Equipment |
| pCU47UzJ1GPIbGIvTo9IsQ== | 2026-03-11 | Original Equipment |
| ChakPkoiWtzo6/jWdVJwUA== | 2026-03-11 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application wKPVf6+C8k8v67186gbX9Q==
| 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: 03/11/2026 Application Dated: 03/11/2026 |
| Shenzhen Xintie E-commerce Co., Ltd. |
| Room 304 S22, Block A, Phase 1, Tianan |
| Innovation Technology Plaza No. 29 Tairan |
| 4th Road, Futian District Shenzhen, Guangdong, 518000 China |
| Attention: Liu He , |
| 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: | 2BU4K-U4 |
| Name of Grantee: | Shenzhen Xintie E-commerce Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Essential oil Diffuser |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.001 |
| Output Power listed is peak conducted. RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. End Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application pCU47UzJ1GPIbGIvTo9IsQ==
| 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: 03/11/2026 Application Dated: 03/11/2026 |
| Shenzhen Xintie E-commerce Co., Ltd. |
| Room 304 S22, Block A, Phase 1, Tianan |
| Innovation Technology Plaza No. 29 Tairan |
| 4th Road, Futian District Shenzhen, Guangdong, 518000 China |
| Attention: Liu He , |
| 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: | 2BU4K-U4 |
| Name of Grantee: | Shenzhen Xintie E-commerce Co., Ltd. |
| Equipment Class: | Unlicensed National Information Infrastructure TX |
| Notes: | Essential oil Diffuser |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15E | 5180.0 - 5240.0 | 0.0296 | ||
| CC | 15E | 5745.0 - 5825.0 | 0.0287 |
| Output power listed is average conducted. This device supports 802.11a, 802.11n and 802.11ac with a 20 MHz and 40 MHz bandwidth mode. RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. End Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application ChakPkoiWtzo6/jWdVJwUA==
| 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: 03/11/2026 Application Dated: 03/11/2026 |
| Shenzhen Xintie E-commerce Co., Ltd. |
| Room 304 S22, Block A, Phase 1, Tianan |
| Innovation Technology Plaza No. 29 Tairan |
| 4th Road, Futian District Shenzhen, Guangdong, 518000 China |
| Attention: Liu He , |
| 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: | 2BU4K-U4 |
| Name of Grantee: | Shenzhen Xintie E-commerce Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Essential oil Diffuser |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2412.0 - 2462.0 | 0.0331 |
| Output Power listed is peak conducted. This device supports 802.11b, 802.11g and 802.11n with a 20 MHz and 40 MHz bandwidth mode. RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. End Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |