2A55Q-DU-W04WPet Water Fountain

Huizhou Dudu Pet Products Co., ltd U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Email: [email protected] This letter is to confirm that we ( Baihetian Innovative Solutions) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: 2024-09-26 Signed by (Printed Name/Title): Kenneth Young/Mgr The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of a ny Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Huizhou Dudu Pet Products Co., ltd FRN: 0032188674 Grantee Code: 2A55Q-DU-W04W Contact Name: ANN HU Street Address: Floor 2/3/4, Building 2 District D Qiaosheng Industrial Park, Lilin Town, Huicheng District, City/Province/Zip: Huizhou, China Telephone No: 18124747060 Email: [email protected] Applicant Signature: Date: 202 4-09-26 Signed by (Printed Name/Title): ANN HU/Manager

Huizhou Dudu Pet Products Co., ltd 2024.09.26 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:2A55Q-DU-W04W [Huizhou Dudu Pet Products 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. Sincerely, (Applicant signature) (Applicant printed name) ANN HU Huizhou Dudu Pet Products Co., ltd 2024.09.26 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:2A55Q-DU-W04W [Huizhou Dudu Pet Products 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) ANN HU

Huizhou Dudu Pet Products Co., ltd 2024.09.26 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Pet Water Fountain Trademark: N/A MODEL : DU-W04W, DU-W04W-5200, DU-W04W-3600, DU-W04A, DU-W04B, DU-W04C FCC ID : 2A55Q-DU-W04W 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 - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : ANN HU / Manager Contact information / address: Floor 2/3/4, Building 2 District D Qiaosheng Industrial Park, Lilin Town, Huicheng District, Huizhou, China

Huizhou Dudu Pet Products Co., ltd 2024.09.26 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing 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, Client’s signature: Client’s name / title : ANN HU / Manager Contact information / address: Floor 2/3/4, Building 2 District D Qiaosheng Industrial Park, Lilin Town, Huicheng District, Huizhou, China

Huizhou Dudu Pet Products Co., ltd Model Difference 2024-09-26 EUT NAME: Pet Water Fountain MODEL : DU-W04W, DU-W04W-5200, DU-W04W-3600, DU-W04A, DU-W04B, DU- W04C FCC ID: 2A55Q-DU-W04W All the model are the same circuit and RF module, except model names and appearance of the color. Regards Sincerely Client’s signature: Client’s name / title : ANN HU / Manager Contact information / address: Floor 2/3/4, Building 2 District D Qiaosheng Industrial Park, Lilin Town, Huicheng District, Huizhou, China

Report No.: BCTC2409190464E External Photos Report No.: BCTC2409190464E Report No.: BCTC2409190464E Report No.: BCTC2409190464E Report No.: BCTC2409190464E

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Report No.: BCTC2409190464E Internal Photos Report No.: BCTC2409190464E Report No.: BCTC2409190464E Report No.: BCTC2409190464E Antenna Report No.: BCTC2409190464E Report No.: BCTC2409190464E

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2A55Q-DU-W04W Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(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=0.2m TEST RESULTS Conclusion: For the max result: 0.0071≤ 1.0, compliance with FCC's RF Exposure Tune up Produce power Maximu m peak output power (dBm) Output power to antenn a (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result WIFI 12±1 13 19.95 1.79 (2.54dBi) 0.0071 1 Pass

AntennaSpecification Manufacture：TUYA ProductName：WBR3Antenna AntennaType：PCB TestDate：2021.05.20 Testedby：LongWang Approvedby：Licco Content 1.GeneralDescription.................................................................................1 2.TestConfigurations...................................................................................2 2.1TestEnvironment............................................................................2 2.2TestEquipment...............................................................................2 2.3TestPrinciple...................................................................................2 3.TestResults..............................................................................................3 3.1GainandEfficiency..........................................................................3 3.2RadiationPattern............................................................................4 4.AntennaDimensions................................................................................6 5.EUTPhoto................................................................................................6 6.TestSetupPhoto......................................................................................7 1 1.GeneralDescription ManufacturerHangzhouTuyaInformationTechnologyCo.,Ltd Address Room701,Building3,MoreCenter,No.87GuDunRoad, Hangzhou,Zhejiang,China TestLocation Room106,Building3,LetongSciencePark,No.500, QiuyiRoad,BinjiangDistrict,Hangzhou ProductNameWBR3Antenna Productmodel WBR3 AntennaType PCBAntenna TestItems Gain;Efficiency;RadiationPattern TestFrequency 2400-2500MHz TestStandard ANSI/IEEEStd149-1979 2 2.TestConfigurations 2.1TestEnvironment Temperature(°C)25 Humidity(%RH)60 AtmosphericPressure(kPa)100.5 2.2TestEquipment TestSystemTEM24Multi-probeMicrowaveChamber TestInstrumentAgilentE5071B 2.3TestPrinciple 3 3.TestResults 3.1GainandEfficiency Frequency(MHz)PeakGain(dBi)Efficiency(%) 2400 1.6252.29 2410 1.7152.17 2420 1.9353.14 2430 1.9854.16 2440 2.0057.62 2450 2.1759.64 2460 2.4561.55 2470 2.3860.64 2480 2.5462.86 2490 2.3059.85 2500 2.4960.41 4 3.2RadiationPattern Phi02D Phi902D 5 Theta902D 2480MHz3D 6 4.AntennaDimensions 5.EUTPhoto 7 6.TestSetupPhoto

No.：BCTC/RF-EMC-005 Page: 1 of 68 Edition：B.2 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2409190464E Applicant: Huizhou Dudu Pet Products Co., ltd Product Name: Pet Water Fountain Test Model: DU-W04W Tested Date: 2024-09-09 to 2024-09-18 Issued Date: 2024-09-18 Report No.: BCTC2409190464E No.：BCTC/RF-EMC-005 Page: 2 of 68 Edition：B.2 FCC ID: 2A55Q-DU-W04W 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. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Pet Water Fountain Trademark: N/A Model/Type reference: DU-W04W DU-W04W-5200, DU-W04W-3600, DU-W04A, DU-W04B, DU-W04C Prepared For: Huizhou Dudu Pet Products Co., ltd Address: Floor 2/3/4, Building 2 District D Qiaosheng Industrial Park, Lilin Town, Huicheng District, Huizhou, China Manufacturer: Huizhou Dudu Pet Products Co., ltd Address: Floor 2/3/4, Building 2 District D Qiaosheng Industrial Park, Lilin Town, Huicheng District, Huizhou, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2024-09-09 Sample tested Date: 2024-09-09 to 2024-09-18 Issue Date: 2024-09-18 Report No.: BCTC2409190464E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is WIFI-2.4GHz band radio test report. Tested by: Approved by: Lei Chen/Project Handler Zero Zhou/Reviewer Report No.: BCTC2409190464E No.：BCTC/RF-EMC-005 Page: 3 of 68 Edition：B.2 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test Procedure ................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 14 7. Radiated Emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test Procedure ................................................................................................... 18 7.4 EUT Operating Conditions .................................................................................. 19 7.5 Test Result .......................................................................................................... 19 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 25 8.1 Block Diagram Of Test Setup .............................................................................. 25 8.2 Limit .................................................................................................................... 25 8.3 Test Procedure ................................................................................................... 26 8.4 EUT operating Conditions ................................................................................... 26 8.5 Test Result .......................................................................................................... 27 9. Power Spectral Density Test ............................................................................... 29 9.1 Block Diagram Of Test Setup .............................................................................. 29 9.2 Limit .................................................................................................................... 29 9.3 Test Procedure ................................................................................................... 29 9.4 EUT Operating Conditions …

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Report No.: BCTC2409190464E No.：BCTC/RF-EMC-005 Page: 66 of 68 Edition：B.2 16. EUT Test Setup Photographs Conducted Emissions Photo Radiated Measurement Photos Report No.: BCTC2409190464E No.：BCTC/RF-EMC-005 Page: 67 of 68 Edition：B.2