2BXKV-A326aroma diffuser

Guangzhou Guorui Trading Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [August 7, 2026] U.S. Agent Designation [Guangzhou Guorui Trading Co., Ltd.] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2BXKV-A326 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [Guangzhou Guorui Trading Co., Ltd.]. [Guangzhou Guorui Trading Co., Ltd.] with the FRN [0038747267] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Signature [Peng Hu] [Huiying Fan] [Responsible person] [Director] [Guangzhou Guorui Trading Co., Ltd.] [GLOCERTS TECHNOLOGY INC]

Guangzhou Guorui Trading Co., Ltd. (August 6, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BXKV-A326 [Guangzhou Guorui Trading Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Peng Hu Guangzhou Guorui Trading Co., Ltd. (August 6, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BXKV-A326 [Guangzhou Guorui Trading Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Peng Hu

Guangzhou Guorui Trading Co., Ltd. (August 6, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (aroma diffuser / A326 / FCC ID: 2BXKV-A326) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Peng Hu Title: Responsible person

Guangzhou Guorui Trading Co., Ltd. (August 6, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Peng Hu Title: Responsible person

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: A326 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

FCC ID LABEL: Label Location: FCC ID: 2BXKV-A326 Model No.: A326 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BXKV-A326 Applied procedures / limit According to FCC §15.247(i) and §1.1310 e 1, systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result BLE GFSK& LCH 1±1 2 1.5849 0.9638 (-0.16dBi) 0.0003 1 Pass

Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 36 TEST REPORT Compiled by: Reviewed by: Approved by: Kai Chen Martin Feng Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. The tested sample(s) and the sample information are provided by the applicant. The authenticity, accuracy, and completeness of the provided information are the sole responsibility of the applicant. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The result decision rules of our laboratory are based solely on the direct comparison between the actual measured values of test results and the standard limits, without considering the measurement uncertainty.“” indicates the testing items were fulfilled by subcontracted lab. “” indicates the items are not in CNAS accreditation scope. Test item description: aroma diffuser FCC ID: 2BXKV-A326 Trademark(s): REXAUTO Model/Type reference: A326 Applicant’s name: Guangzhou Guorui Trading Co., Ltd. Address: Room 301, Building 3, No. 684 Shibei Industrial Road, Dashi Street, Panyu District, Guangzhou City, Guangdong Province, China Manufacturer: Guangzhou Guorui Trading Co., Ltd. Address: Room 301, Building 3, No. 684 Shibei Industrial Road, Dashi Street, Panyu District, Guangzhou City, Guangdong Province, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Jul. 07, 2026 Sample tested Date: Jul. 07, 2026 to Jul. 24, 2026 Issue Date: Jul. 24, 2026 Report No.: CTB26070709401RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB26070709401RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 36 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 3 2. TEST SUMMARY ........................................................................................................................... 4 3. MEASUREMENT UNCERTAINTY ................................................................................................. 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 6 4.1 Product Information .......................................................................................................................... 6 4.2 Test Setup Configuration .................................................................................................................. 6 4.3 Support Equipment........................................................................................................................... 6 4.4 Channel List ..................................................................................................................................... 7 4.5 Test Mode ........................................................................................................................................ 7 4.6 Test Environment ............................................................................................................................. 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 8 5.1 Test Facility ...................................................................................................................................... 8 5.2 Test Instrument Used ....................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 11 6.1 Block Diagram Of Test Setup ......................................................................................................... 11 6.2 Limit ................................................................................................................................................ 11 6.3 Test procedure ............................................................................................................................... 11 6.4 Test Result ..................................................................................................................................... 13 7. RADIATED SPURIOUS EMISSION ............................................................................................. 15 7.1 Block Diagram Of Test Setup ......................................................................................................... 15 7.2 Limit ................................................................................................................................................ 15 7.3 Test procedure ............................................................................................................................... 15 7.4 Test Result ..................................................................................................................................... 17 8. BAND EDGE AND RF CONDUCTED SPURIOUS EMISSIONS .................................................. 24 8.1 Block Diagram Of Test Setup ......................................................................................................... 24 8.2 Limit ................................................................................................................................................ 24 8.3 Test procedure .................…

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Shenzhen CST Testing Co., Ltd Room 530, 531, Block A, Huafeng Internet Creative Park, No. 107 Gonghe Industrial Road, Xixiang Street, Baoan District, Shenzhen, China. 518101 Telephone: 0755-27907627 | Fax: 0755-27907627 Antenna Test Report Customer Name Granwin IoT Technology (Guangzhou) Co., Ltd Product Name GY-BT2G Customer P/N GY-BT2G Manufacturer Granwin IoT Technology (Guangzhou) Co., Ltd Frank Cheng Laboratory Manager 1. Specifications Main Technical Specifications Parameter Specification Frequency Range 2.4 ~ 2.5 GHz Impedance 50 Ω Peak Gain 0 dBi VSWR ≤ 2.40 Admitted Power - Polarization Linear, Vertical Radiation Pattern Omni-directional Connector Type SMA 2. Product Photos 3. Test Report VSWR Measurement Results Detailed Measurement Data Frequency (MHz) Efficiency (dB) Efficiency (%) Gain (dBi) 2400 -7.32999 18.49273% -1.20553 2410 -7.18542 19.11868% -0.94505 2420 -7.12792 19.37348% -0.73896 2430 -7.13559 19.33929% -0.65863 2440 -6.91866 20.32985% -0.34065 2450 -6.83394 20.73033% -0.26785 2460 -6.73728 21.19688% -0.19208 2470 -6.71746 21.29382% -0.16145 2480 -6.65285 21.61299% -0.17219 2490 -6.58922 21.93197% -0.09976 2500 -6.48774 22.45049% 0.00327 4. Radiation Patterns 2400P0 Polar 2400P0 Total 2400P90 Polar 2400P90 Total 2410P0 Polar 2410P0 Total 2410P90 Polar 2410P90 Total 2420P0 Polar 2420P0 Total 2420P90 Polar 2420P90 Total 2430P0 Polar 2430P0 Total 2430P90 Polar 2430P90 Total 2440P0 Polar 2440P0 Total 2440P90 Polar 2440P90 Total 2450P0 Polar 2450P0 Total 2450P90 Polar 2450P90 Total

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: A326 Test Setup Photos of EUT Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions