2AIHFZYEX1F08SMOOTH-Q5 Ultra AI Tracker

GuilinZhishenInformationTechnologyCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:27October2025 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing&AttestationStatementsPart 2.911(d)(5)(ii)Filing FCCID:2AIHFZYEX1F08 GuilinZhishenInformationTechnologyCo.,Ltd.certifiesthattheequipmentforwhich authorizationissoughtisnotequipmentprohibitedfromreceivinganequipmentauthorization pursuanttosection2.903oftheFCCrules. GuilinZhishenInformationTechnologyCo.,Ltd.(“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproduced orprovidedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipment withintegratedKasperskyLab,Inc.(oranyofitssuccessorsandassignees)cybersecurityor anti-virussoftwarepursuanttoDA-24-886andKDB986446D01CoveredEquipment GuidancesectionB(2a) GuilinZhishenInformationTechnologyCo.,Ltd.certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asspecificallynamedentityor anyofitssubsidiariesoraffiliates)asanentityproducing”coveredequipment. Sincerely, Printedname:YilunLiao Title:CEO CompanyName:GuilinZhishenInformationTechnologyCo.,Ltd. Signed:

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Date:27October2025 GuilinZhishenInformationTechnologyCo.,Ltd. To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 ToWhomItMayConcern: TheGuilinZhishenInformationTechnologyCo.,Ltd.theundersigned,herebyauthorizesMr. WuXuewenfromShenzhenBALUNTechnologyCo.,Ltd.,toactonthebehalfoftheGuilin ZhishenInformationTechnologyCo.,Ltd.solelyinmattersrelatingtotheapplicationforanFCC equipmentauthorizationforFCCID:2AIHFZYEX1F08includingthesigningofdocumentsin connectionwiththisApplication.NecessaryactscarriedoutbyShenzhenBALUNTechnology Co.,Ltd.inconnectionwiththeApplicationshallhavethesameeffectasactsoftheGuilin ZhishenInformationTechnologyCo.,Ltd. TheGuilinZhishenInformationTechnologyCo.,Ltd.alsoherebycertifythatnopartytothis applicationissubjecttoadenialofbenefits,includingFCCbenefits,pursuanttoSection5301of theAnti-DrugAbuseActof1988,21U.S.C.Section862. YoursSincerely, YilunLiao

Date:27October2025 GuilinZhishenInformationTechnologyCo.,Ltd. To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 Re:GuilinZhishenInformationTechnologyCo.,Ltd. FCCID:2AIHFZYEX1F08 FCCCertificationConfidentialityRequest Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.GuilinZhishenInformationTechnologyCo.,Ltd.requeststhatthe followingdocumentsregardingthissubmissionforFCCID:2AIHFZYEX1F08be keptconfidential: ExhibitTypeFileName BlockDiagramBlockDiagram.pdf SchematicsSchematics.pdf OperationalDescriptionOperationalDescription.pdf Andbelowexhibitkeptshort-termconfidential(180days): ExternalphotosExternalphotos.pdf Testsetupphotostestphoto.pdf InternalphotosInternalphotos.pdf UsermanualUsermanual.pdf Thosedocumentscontaindetailedsystemandequipmentdescriptionandrelated informationabouttheproductwhichGuilinZhishenInformationTechnologyCo., Ltd. considerstobeconfidentialproprietary,acustomdesignand,otherwise,not releasabletothegeneralpublic.Sincethisdesignisabasisformwhichfuture technologicalproductswillevolve,GuilinZhishenInformationTechnologyCo.,Ltd. considersthisinformationwouldbeofbenefittoitscompetitors,andthatthe disclosureoftheinformationinthesedocumentswouldgivecompetitorsanunfair advantageinthemarket. YoursSincerely, YilunLiao

Report No.: BL-SZ2590344-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Guilin Zhishen Information Technology Co., Ltd. Address: 09 Huangtong Road, Tieshan Industrial Zone, Qixing District, Guilin, Guangxi, China. Equipment Type: SMOOTH-Q5 Ultra AI Tracker Model Name: EX1F08 Brand Name: ZHIYUN FCC ID: 2AIHFZYEX1F08 Test Standard: 47 CFR Part 2.1091 KDB 447498 D04 v01 Sample Arrival Date: Aug. 21, 2025 Test Date: Sep. 08, 2025 - Sep. 11, 2025 Date of Issue: Sep. 30, 2025 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xiong Lining Checked by: Xu Rui Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ2590344-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Content Rev. 01 Sep. 30, 2025 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 3 1.1 Test Laboratory ............................................................................................................ 3 1.2 Test Location ................................................................................................................ 3 2 PRODUCT INFORMATION ....................................................................................................... 4 2.1 Applicant Information .................................................................................................... 4 2.2 Manufacturer Information .............................................................................................. 4 2.3 General Description for Equipment under Test (EUT) ................................................... 4 2.4 Technical Information ................................................................................................... 5 3 SUMMARY OF TEST RESULT ................................................................................................. 6 3.1 Test Standards ............................................................................................................. 6 3.2 Limit Standards ............................................................................................................. 6 4 DEVICE CATEGORY AND LEVELS LIMITS ............................................................................. 7 5 ASSESSMENT RESULT ........................................................................................................... 9 5.1 Output Power ............................................................................................................... 9 5.2 Tune-up power ............................................................................................................. 9 5.3 RF Exposure Evaluation Result .................................................................................... 9 5.4 Conclusion .................................................................................................................... 9 Report No.: BL-SZ2590344-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1 GENERAL INFORMATION 1.1 Test Laboratory Name Shenzhen BALUN Technology Co., Ltd. Address Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number +86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1/F, Building B, Ganghongji High-tech Intelligent Industrial Park, No. 1008, Songbai Road, Yangguang Community, Xili Sub-district, Nanshan District, Shenzhen, Guangdong Province, P. R. China Accreditation Certificate The laboratory is a testing organization accredited by FCC as a accredited testing laboratory. The designation number is CN1196. Report No.: BL-SZ2590344-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant Guilin Zhishen Information Technology Co., Ltd. Address 09 Huangtong Road, Tieshan Industrial Zone, Qixing District, Guilin, Guangxi, China. 2.2 Manufacturer Information Manufacturer Guilin Zhishen Information Technology Co., Ltd. Address 09 Huangtong Road, Tieshan Industrial Zone, Qixing District, Guilin, Guangxi, China. 2.3 General Description for Equipment under Test (EUT) EUT Name SMOOTH-Q5 Ultra AI Tracker Model Name Under Test EX1F08 Series Model Name N/A Description of Model name differentiation N/A Hardware Version V1.0 Software Version N/A Dimensions (Approx.) N/A Weight (Approx.) N/A Report No.: BL-SZ2590344-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 5 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Mobile (2023-10-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 2.4 Technical Information Network and Wireless connectivity Bluetooth (BLE) The requirement for the following technical information of the EUT was tested in this report: Operating Mode Bluetooth Frequency Range Bluetooth 2402 ~ 2480 MHz Antenna Type…

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Report No.: BL-SZ2590344-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 64 Web: www.titcgroup.com Template No.: TRP-FCC&ISED 247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Guilin Zhishen Information Technology Co., Ltd. Address: 09 Huangtong Road, Tieshan Industrial Zone, Qixing District, Guilin, Guangxi, China. Equipment Type: SMOOTH-Q5 Ultra AI Tracker Model Name: EX1F08 Brand Name: ZHIYUN FCC ID: 2AIHFZYEX1F08 ISED Number: 29921-ZYEX1F08 Test Standard: 47 CFR Part 15 Subpart C RSS-Gen Issue 5 RSS-247 Issue 3 (refer to section 3.1) Sample Arrival Date: Aug. 21, 2025 Test Date: Sep. 08, 2025 - Sep. 11, 2025 Date of Issue: Nov. 04, 2025 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie Zhu Checked by: Ye Hongji Approved by: Sunny Zou (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2590344-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 64 Web: www.titcgroup.com Template No.: TRP-FCC&ISED 247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Rev. 01 Sep. 30, 2025 Initial Issue Rev. 01 Nov. 04, 2025 Add a test plot on page 56. TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 4 1.1 Test Laboratory ............................................................................................................ 4 1.2 Test Location ................................................................................................................ 4 2 PRODUCT INFORMATION ....................................................................................................... 5 2.1 Applicant Information .................................................................................................... 5 2.2 Manufacturer Information .............................................................................................. 5 2.3 General Description for Equipment under Test (EUT) ................................................... 5 2.4 Technical Information ................................................................................................... 6 3 SUMMARY OF TEST RESULTS ............................................................................................... 8 3.1 Test Standards ............................................................................................................. 8 3.2 Test Verdict .................................................................................................................. 9 4 GENERAL TEST CONFIGURATIONS .................................................................................... 10 4.1 Test Environments ...................................................................................................... 10 4.2 Test Equipment List .................................................................................................... 10 4.3 Test Software List ....................................................................................................... 10 4.4 Measurement Uncertainty ........................................................................................... 11 4.5 Description of Test Setup ........................................................................................... 11 4.6 Measurement Results Explanation Example ............................................................... 14 5 TEST ITEMS ........................................................................................................................... 15 5.1 Antenna Requirements ............................................................................................... 15 5.2 Output Power ............................................................................................................. 16 5.3 Occupied Bandwidth ................................................................................................... 18 5.4 Conducted Spurious Emission .................................................................................... 19 5.5 Band Edge (Authorized-band band-edge) ................................................................... 21 Report No.: BL-SZ2590344-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 64 Web: www.titcgroup.com Template No.: TRP-FCC&ISED 247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 5.6 Conducted Emission ................................................................................................... 23 5.7 Radiated Spurious Emission ....................................................................................... 24 5.8 Band Edge (Restricted-band band-edge) .................................................................... 29 5.9 Power Spectral density (PSD) .................................................................................... 30 ANNEX A TEST RESULT ........................................................................................................... 31 A.1 Output Power, E.I.R.P ................................................................................................ 31 A.2 Occupied Bandwidth ................................................................................................... 34 A.3 Conducted Spurious Emissions .................................................................................. 38 A.4 Band Edge (Authorized-band band-edge) ................................................................... 43 A.5 Conducted Emissions ................................................................................................. 46 A.6 Radiated Spurious Emission ....................................…

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Antenna Sample Datasheet customer： 智神 entry name： SM123-AI Material category： 2.4GHz-ANT 2.4G antenna Antenna Type Monopole Antenna Material FPC edition： A0 Date： 2025.07.15 Antenna manufacturer:Hongji Wireless Communication (Shenzhen) Co., LTD http://www.honant.com.cn Address:12 / F, West Block B, Building 8, Huaqiang Creative Industry Park, Sightseeing Road, Guangming District, Shenzhen Z HISHEN
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CENTER Contents 1：Antenna test equipment.................................................1 2：Passive test report...........................................................3 3：Structural drawing...........................................................5 4：Antenna diagram.............................................................6 Z HIS HEN
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CENTER 1 1：Antenna test equipment List of meters：Agilent 5071B； 1.1The principle diagram of the ETS anochoic chamber Picture1.Antenna static test connection method Z HIS HEN
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CENTER 2 1.2 Pictures of the ETS anochoic chamber Inside the ETS anochoic chamber Test Machine Z HIS HEN
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CENTER 3 2：Passive test report 2.1： antenna S11 parameters Z HIS HEN
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CENTER 4 2.2：Passive efficiency of antenna Frequency Efficiency-DB Efficiency-% Gain(dBi) 2400 -2.33 58.42 0.61 2410 -2.38 57.85 0.55 2420 -2.44 57.07 0.4 2430 -2.46 56.76 0.33 2440 -2.51 56.14 0.26 2450 -2.67 54.07 0.04 2460 -2.77 52.89 -0.01 2470 -2.82 52.22 -0.06 2480 -2.89 51.43 -0.05 2490 -2.96 50.58 -0.16 2500 -3.03 49.73 -0.17 2.3：Passive pattern of wifi antenna 2400MHz Z HIS HEN
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CENTER 5 2450MHz 2500MHz Z HIS HEN
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CENTER 6 3.1：Structural drawing G F E D C A 3 42 G F 5 6 D C B A 1 5 6 3 4 B 1 2 E 鸿基无线通信（深圳）有限公司 Change the route to a double-sided one A2 Z HIS HEN
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CENTER 7 3.2:Schematic diagram of the entire machine Z HIS HEN
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CENTER