2AQI5-WS226UGREEN EchoBuds Pro

UgreenGroupLimited Date:18June2026 To:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Attestation Section2.911(d)(5)(i)andSection2.911(d)(5)(ii) (KDB986446D01CoveredEquipment) Section2.911(d)(5)(i) UgreenGroupLimited(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Thesoftwaretobeloadedpriortomarketingoftheequipmentidentifiedbelowisnot "covered"softwaremanufacturedbyanyentityincludingpredecessors,successors, parents,subsidiaries,oraffiliatesoranyentitywhichhasrebrandedorrelabeledthe softwareproducedbytheentity(ies)identifiedonthe"CoveredList"DA24-886and KDB986446D01CoveredEquipmentGuidancesectionB(2a). UgreenGroupLimited(“theapplicant”)furthercertifiesthatnoCybersecurityor anti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.oranyofits successorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc. (oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftwareis installedintheequipmentbeingcertified. ContactPerson Section 2.911(d)(5)(ii) Ugreen Group Limited(“the applicant”) certifies that, as of the date of the filing of the application, the applicant[is not]identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Type of Equipment subject to FCC Certification: FCC ID: 2AQI5-WS226 If you have any questions, please feel free to contact me :ChiYang PositionintheCompany:Manager DateofSignature:June18,2026 ___________________________ Signatory (signatureoftheapplicant)

A mer i c a U g r ee n L i m i t e d S e c t i o n 2 . 9 1 1 ( d ) ( 7 ) U S AA g e n t f o r S e rv i c e o f P r oce ss C o m p a n y name : U g r ee n G r ou p L i m i t e d A d d r ess : U g r e e n B u i l di n g , L o n g c h en g I n d u s t r i a l P a r k , L o n gg u an x i R o a d , L o n g h u a , S h e n Z h e n , C hi na P r o d u c t N a m e : U G R E E N E c h o B u d s P r o F C C I D : 2 A Q 1 5 - W S 22 6 M o d e l ( s ) : W S 2 2 6 2 . 9 11 ( d )( 7 ) U S A D e s i g n a t e d A g e n t f o r S e rv i ce o f P r o c e s s W e , [ U g r e e n G r o u p L i m i t e d ] ( " t h e a p p l i c a n t " ) d es i g na t e [ A m e r i c a U g r e e n L i m i t e d ] N o r e i f o r t h e p u r p o se o f a cc e p i n g s e r v i c e o f p ro ce s s o n b e h a l f o f t h e a pp l i c an t . A p p l i c a n t c o n se n t : W e A c k n o w l e d g e o u r cons e n t t o a cc e p t s e r v i ce o f p r ocess i n t h e U n i t e d S t a t e s f o r m a tt e r s r e l a t e d t o t h e a p p li ca b l e e q u i p m e n t , a n d a t t h e p h y s i c a l U . S . a d d r e s s a n d e m a i l a d d r es s o f t h e d e s i g na t e d a g e n t a n d ac k now l e d g e o u r ac c e p t a n c e o f ou r o b l i g a t i on t o m a i n t a i n a n a g e n t f o r s e r v i ce o f p r o c ess i n t h e U n i t e d S t a t es f o r n o l e ss t h an o n e y e ar a f t er e i t h er t h e g r a n t ee h as p e r m a n e n t l y t e r m i n a t e d a l l m a r k e t i n g an d i m p o r t a t i o n o f t h e a p p li c a b l e e q u i p m e n t w i t h i n t h e U . S . , o r t h e c o n c l u s i on o f an y C o mm i ss i o n - r e l a t e d a d m i n i s t r a t i v e o r j u d i c i a l p r oc e e d i n g i n v o l v i n g t h e e q u i p m e n t , w h i c h e v e r i s l a t e r . A g e n t o b l i g a t i o n : W e A c k n o w l e d g e our o b li g a t i o n t o a cc e p t s e r v i c e o f p r oc e ss i n t h e U n i t e d S t a t es f o r m a t t e r s r e l a t e d t o t h e a p p l i ca b l e e q u i p me n t a t o u r p h y s i ca l U . S . a d d r ess a n d e m a il a d d r es s f o r no l e ss t h an one y e a r a f t e r e i t h e r t h e g r an t ee h a s p e r ma n e n t l y t e rm i n a t e d a l l m a r k e t i n g a n d i m p or t a t i o n o f t h e a p p l i c a b l e e q u i p m e n t w i t h i n t h e U . S . , o r t h e c o n c l u s i o n o f a n y C omm i s s i on - r e l a t e d a d m i n i s t ra t i v e or j u d i c i a l p r o cee d i n g i n v o l v i n g t h e e q u i p men t , w hi c h e v e r i s l a t e r . U S A A g e n t C o m p a n y na m e : A m e r i c a U g r ee n L i m i t e d A d d r e s s : 382 8 K e nn e t t P i k e , S u i t e 2 1 2 , G re e n v i l l e , D E 1 9 8 0 7 - 2 33 1 A pp l i c a n t C om p a n y na m e : U g r ee n G r o u p L i m i t e d A dd r e s s : U g r e e n B u i l d i n g , L on g c h e n g I n d u s t r i a l P a r k , L o n gg u a n x i R o a d , L on g h u a , S h e n Z h en , C h i na F R N : 0 03 3 4 2 6 18 0 C o n t ac t N a m e : M o r g a n G o r d o n T e l e p h o n e N o : + 1 30 2 2 06 2 63 0 E m a i l : se v e n @ u g r e e n . c o m S i g n a t u r e : T i t l e : M a n a g e r D a t e : 20 2 6 - 07 - 1 F R N : 0027672971 C o n t a c t N a m e : C h i Y a n g T e l e p h o n e N o : 0 7 55 - 2 8 1 9 8930 Ema i l : ce r t i f i c a t i o n @ u g r e e n . c o m Signatu r e : 0 T i t l e : A u t or i z e d O f f i c e r D a t e : 2026 - 0 7 - 1 0 2 . 9 11 ( d ) ( 7 ) U S A A g e n t v 1 . 2

Date:18June2026 UgreenGroupLimited To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 _______ ChiYan To Whom It May Concern: The Ugreen Group Limited, the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on the behalf of the Ugreen Group Limited solely in matters relating to the application for an FCC equipment authorization for FCC ID:2AQI5- WS22 6 including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen BALUN Technology Co., Ltd. in connection with the Application shall have the s ame effect as acts of the Ugreen Group Limited. The Ugreen Group Limited also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862. Yours Sincerely, g

Date:18June2026 UgreenGroupLimited To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 FCCCertificationConfidentialityReques Re: Ugreen Group Limited FCC ID: 2AQI5-WS226 t Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.UgreenGroupLimitedrequeststhatthefollowingdocumentsregarding thissubmissionforFCCID:2AQI5-FT505bekeptconfidential: ExhibitTypeFileName BlockDiagramBlockDiagram.pdf SchematicsSchematics.pdf OperationalDescriptionOperationalDescription.pdf Andbelowexhibitkeptshort-termconfidential(180days): UsermanualUsermanual.pdf Thosedocumentscontaindetailedsystemandequipmentdescriptionandrelated informationabouttheproductwhichUgreenGroupLimitedconsiderstobe confidentialproprietary,acustomdesignand,otherwise,notreleasabletothe generalpublic.Sincethisdesignisabasisformwhichfuturetechnological productswillevolve,UgreenGroupLimitedconsidersthisinformationwouldbeof benefittoitscompetitors,andthatthedisclosureoftheinformationinthese documentswouldgivecompetitorsanunfairadvantageinthemarket. YoursSincerely, ChiYang

ReportNo.:Ti-EE26070494-AW 1 / 8 EUTEXTERNALPHOTOS Black FRONTVIEWOFEUT REARVIEWOFEUT ReportNo.:Ti-EE26070494-AW 2 / 8 LEFTVIEWOFEUT RIGHTVIEWOFEUT ReportNo.:Ti-EE26070494-AW 3 / 8 TOPVIEWOFEUT BOTTOMVIEWOFEUT ReportNo.:Ti-EE26070494-AW 4 / 8 Accessory-ChargingCase White FRONTVIEWOFEUT ReportNo.:Ti-EE26070494-AW 5 / 8 REARVIEWOFEUT LEFTVIEWOFEUT ReportNo.:Ti-EE26070494-AW 6 / 8 RIGHTVIEWOFEUT TOPVIEWOFEUT ReportNo.:Ti-EE26070494-AW 7 / 8 BOTTOMVIEWOFEUT Accessory-ChargingCase ReportNo.:Ti-EE26070494-AW 8 / 8 Accessory-Type-CCable --BLANKBELOW--

ReportNo.:Ti-EE26070494-AI 1 / 3 EUTINTERNALPHOTOS EUTUNCOVERVIEW1 EUTUNCOVERVIEW2 FPCAntenna ReportNo.:Ti-EE26070494-AI 2 / 3 MAINBOARDTOPVIEW MAINBOARDREARVIEW RFChip ReportNo.:Ti-EE26070494-AI 3 / 3 BATTERY(FRONT) BATTERY(REAR) --BLANKBELOW--

BOM—WS226-BT8970H-L-V2.0 102.300.11.0920PCBALLC2269,PCBA,WS226-T9_BT8970H_L_V2.0,6-Layer HDI,T=0.8mm Pcs 2.13.610.11.0419PCBPCB,WS226-T9_BT8970H_L_V2.0,6-Layer HDI,T=0.8mm Pcs1 3.13.618.11.0277ICIC,Bluetooth,BT8970H,QFN50_4x6（LLC2269）U1Pcs1 4.13.613.11.0011BRes0R00,Res,0201,0R,±1%,1/20WR4,R5,L1Pcs3 5.13.613.11.0013BRes0R00,Res,0402,0R,±1%,1/16WR3Pcs1 6.13.613.11.0050CRes2201,Res,0201,2.2K,±1%,1/20WR13,R15,R31,R32Pcs4 7.13.613.11.0020BRes1003,Res,0201,100K,±1%,1/20WR2Pcs1 8.13.613.11.0191NTCNTC,100K±1%0201,NCP03WF104F05RNTCPcs1 9.13.612.11.0064BCap330,Cap,Ceramic,0201,33pF,±5%,50V,C0GC1,C8,C19,C25Pcs4 10.13.612.11.0125Cap101,Cap,Ceramic,0201,100PF,±5%,50VC24Pcs1 11.13.612.11.0126Cap102,Cap,Ceramic,0201,1nF,±10%,50VC4Pcs1 12.13.612.11.0015ACap105,Cap,Ceramic,0201,1uF,±20%,10V,X5RC6,C7,C10,C12,C16,C22,C26,C27,C33Pcs9 13.13.612.11.0144Cap475,Cap,Ceramic,0402,4.7uF,±20%,16V,X5RC3,C11,C20,C21Pcs4 14.13.612.11.0020ACap106,Cap,Ceramic,0402,10uF,±20%,10V,X5RC2,C5,C9Pcs3 15.13.616.11.0013IND IND,120nH,±5%,DCR=5Ω,80mA,0201 （SDCL0603QR12JT02B03） L8,L10Pcs2 16.13.616.11.0079INDIND_10uH_±20%_0603_SDHK1608HB100MT,1.75×1.05×1.0mmL3,L5Pcs2 17.13.614.11.0113ESD ESD,MESD3V3CF06B，3.3V，DFN0603-2L(SOD962)， 0.6x0.3x0.3mm ESD1Pcs1 18.13.614.11.0001CESD TVS,PESDNC2FD5VB,VRWM:5.0V,VBR:7.8V,VC:8.0V,C:20pF,DFN10 06-2L,1.08x0.68x0.5mm ESD4Pcs1 19.13.620.11.0001XTALCrystal,24MHz,±10ppm,9pF,2016,2.0x1.6x0.5mmY1Pcs1 20.13.625.11.0028MICMSM381ACBA24，AOP130dB,SNR66dBMIC1,MIC2Pcs2 21.13.412.11.0163POGOPOGO，A13095-04，L1.8xW1.0xH3.0mm，2.4-2.6mm，3UANT1,ANT2,T1Pcs3 22.13.617.11.0127CONN BTB-S,EMT-KB30112S 12PIN， P0.35,12pin(12+2),P=0.35mm,H=0.60mm BTB1Pcs1 BOM—WS226-BT8970H-R-V2.0 102.300.11.0921PCBA LLC2269,PCBA,WS226-T9_BT8970H_R_V2.0,6-Layer HDI,T=0.8mm Pcs 2.13.610.11.0420PCBPCB,WS226-T9_BT8970H_R_V2.0,6-HDI,6-Layer HDI,T=0.8mm Pcs1 3.13.618.11.0277ICIC,Bluetooth,BT8970H,QFN50_4x6（LLC2269）U1Pcs1 4.13.613.11.0011BRes0R00,Res,0201,0R,±1%,1/20WR4,R5,L1Pcs3 5.13.613.11.0013BRes0R00,Res,0402,0R,±1%,1/16WR3Pcs1 6.13.613.11.0050CRes2201,Res,0201,2.2K,±1%,1/20WR13,R15,R31,R32Pcs4 7.13.613.11.0020BRes1003,Res,0201,100K,±1%,1/20WR2Pcs1 8.13.613.11.0191NTCNTC,100K±1%0201,NCP03WF104F05RNTCPcs1 9.13.612.11.0064BCap330,Cap,Ceramic,0201,33pF,±5%,50V,C0GC1,C8,C19,C25Pcs4 10.13.612.11.0125Cap101,Cap,Ceramic,0201,100PF,±5%,50VC24Pcs1 11.13.612.11.0126Cap102,Cap,Ceramic,0201,1nF,±10%,50VC4Pcs1 12.13.612.11.0015ACap105,Cap,Ceramic,0201,1uF,±20%,10V,X5RC6,C7,C10,C12,C16,C22,C26,C27,C33Pcs9 13.13.612.11.0144Cap475,Cap,Ceramic,0402,4.7uF,±20%,16V,X5RC3,C11,C20,C21Pcs4 14.13.612.11.0020ACap106,Cap,Ceramic,0402,10uF,±20%,10V,X5RC2,C5,C9Pcs3 15.13.616.11.0013IND IND,120nH,±5%,DCR=5Ω,80mA,0201 （SDCL0603QR12JT02B03） L8,L10Pcs2 16.13.616.11.0079INDIND_10uH_±20%_0603_SDHK1608HB100MT,1.75×1.05×1.0mmL3,L5Pcs2 17.13.614.11.0113ESD ESD,MESD3V3CF06B，3.3V，DFN0603-2L(SOD962)， 0.6x0.3x0.3mm ESD1Pcs1 18.13.614.11.0001CESD TVS,PESDNC2FD5VB,VRWM:5.0V,VBR:7.8V,VC:8.0V,C:20pF,DFN10 06-2L,1.08x0.68x0.5mm ESD4Pcs1 19.13.620.11.0001XTALCrystal,24MHz,±10ppm,9pF,2016,2.0x1.6x0.5mmY1Pcs1 20.13.625.11.0028MICMSM381ACBA24，AOP130dB,SNR66dBMIC1,MIC2Pcs2 21.13.412.11.0163POGOPOGO，A13095-04，L1.8xW1.0xH3.0mm，2.4-2.6mm，3UANT1,ANT2,T1Pcs3 22.13.617.11.0127CONN BTB-S,EMT-KB30112S 12PIN， P0.35,12pin(12+2),P=0.35mm,H=0.60mm BTB1Pcs1

Report No.: Ti-EE26070494-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen TEST REPORT Applicant: Ugreen Group Limited Address: URGEEN Building, Longcheng Industrial Park, Longguanxi Road, Longhua, ShenZhen, China Equipment Type: UGREEN EchoBuds Pro Model Name: WS226 Brand Name: FCC ID: 2AQI5-WS226 Test Standard: 47 CFR Part 2.1093 (refer to section 3.1) Sample Arrival Date: Jul. 14, 2026 Test Date: Aug. 08, 2026 Date of Issue: Aug. 14, 2026 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xiong Lining Checked by: Xu Rui Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: Ti-EE26070494-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Revision History Version Issue Date Revisions Content Rev. 01 Aug. 14, 2026 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 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.: Ti-EE26070494-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen 1 GENERAL INFORMATION 1.1 Test Laboratory Name Shenzhen BALUN Technology Co., Ltd. Address 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Phone Number +86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen, Guangdong 1/F., Building B, Ganghongji High-Tech Intelligent Industrial Park, No.1008, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong Accreditation Certificate The laboratory is a testing organization accredited by FCC as a accredited testing laboratory. The designation number is CN1196. Report No.: Ti-EE26070494-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant Ugreen Group Limited Address UGREEN Building, Longcheng Industrial Park Longguanxi Road, Longhua, ShenZhen, China 2.2 Manufacturer Information Manufacturer Ugreen Group Limited Address UGREEN Building, Longcheng Industrial Park Longguanxi Road, Longhua, ShenZhen, China 2.3 General Description for Equipment under Test (EUT) EUT Name UGREEN EchoBuds Pro Model Name Under Test WS226 Series Model Name N/A Description of Model name differentiation N/A Hardware Version N/A Software Version N/A Dimensions (Approx.) N/A Weight (Approx.) N/A Remark: - Product Number (P/N) code in the below table, for marketing purpose, will be marked on the marking plate. 16102 16102EU 16102UK 16102US 16102J 16102CN 16102KC 16102A 16102B 16102C 16102P 16102X 16102U KC-16102 16102DE 16102RF 16103 16103EU 16103UK 16103US 16103JP 16103CN 16103KC 16103A 16103B 16103C 16103P 16103X 16103U KC-16103 16103DE 16103RF Report No.: Ti-EE26070494-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 5 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Roa…

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Aitenuo Antenna Co.,Ltd Shenzhen ATN communication equipment co., ltd Customer: Bei jing Ancsonic Technology Co.,Ltd Project: T9 Date: 2026.07.04 Frequency band 2.4G-2.48G Report version number A4.0 Antenna structure FPC, PIFA antenna Antenna test report Address: 504-505, Meishengchuanggu Xiagu, Longchang Road, Xin 'an Street, Baoan District, Shenzhen. Tel: 0755-29308863 Fax: 0755-29308861 Aitenuo Antenna Co.,Ltd test macro Aitenuo Antenna Co.,Ltd Antenna size（mm） Aitenuo Antenna Co.,Ltd resume version date content A1.0 2026.04.20 3D printing shell, output antenna debugging data, the antenna is a PIFA antenna. antenna version: T9-V1. A2.0 2026.04.21 Increase the efficiency of the die and the conductive welding diagram. A3.0 2026.06.25 Die shell debugging, antenna version: T9-V7, PCBA version: T9-8970H-ZXL-Y2.0-2605. A4.0 2026.07.14 Increasing free space data Aitenuo Antenna Co.,Ltd 1. PCBA conduction test data 2. Antenna matching circuit 3. Passive test data 4. OTA test data of the whole machine 5. Assembly requirements 6. Practical distance test catalogue Aitenuo Antenna Co.,Ltd Bluetooth BR Chip model: BT8970H L Channel Frequency(MHz) TX(dBm) 0 2402 11.2 39 2441 10.9 78 2480 10.5 Channel Frequency(MHz) RX(dBm) 0 2402 -95 39 2441 -95 78 2480 -95 1. PCBA conduction test data R Channel Frequency(MHz) TX(dBm) 0 2402 11.1 39 2441 10.8 78 2480 10.5 Channel Frequency(MHz) RX(dBm) 0 2402 -95 39 2441 -95 78 2480 -95 1.1, PCBA conductive welding diagram Aitenuo Antenna Co.,Ltd Element Value C1(0201) NC C2(0201) 0R C3(0201) NC L/R matching circuit is the same. 2. Antenna matching circuit RF Module C3 C1 Ant C2 Aitenuo Antenna Co.,Ltd 3. Passive test data 3.1 S11 Parameter L R Aitenuo Antenna Co.,Ltd 3.2 Gain & Efficiency (Free space) Freq(MHz) Gain(dBi) Efficiency(dB) Efficiency(%) 2400.00 -5.32 -8.19 15.18 2410.00 -4.87 -7.81 16.54 2420.00 -4.57 -7.62 17.30 2430.00 -4.23 -7.37 18.30 2440.00 -4.00 -7.21 19.03 2450.00 -3.90 -7.16 19.25 2460.00 -3.92 -7.20 19.05 2470.00 -4.01 -7.36 18.37 2480.00 -4.14 -7.52 17.70 L Freq(MHz) Gain(dBi) Efficiency(dB) Efficiency(%) 2400.00 -2.36 -7.61 17.35 2410.00 -2.17 -7.35 18.39 2420.00 -2.06 -7.23 18.94 2430.00 -1.84 -7.05 19.74 2440.00 -1.64 -6.90 20.42 2450.00 -1.55 -6.86 20.63 2460.00 -1.58 -6.91 20.38 2470.00 -1.68 -7.06 19.66 2480.00 -1.77 -7.22 18.98 R Aitenuo Antenna Co.,Ltd 3.2 Gain & Efficiency (Head phantom) Freq(MHz) Gain(dBi) Efficiency(dB) Efficiency(%) 2400.00 -4.92 -10.16 9.64 2410.00 -4.52 -9.86 10.32 2420.00 -4.36 -9.76 10.57 2430.00 -4.18 -9.60 10.95 2440.00 -4.06 -9.55 11.09 2450.00 -4.03 -9.60 10.97 2460.00 -4.14 -9.78 10.53 2470.00 -4.37 -10.07 9.85 2480.00 -4.53 -10.34 9.25 L Freq(MHz) Gain(dBi) Efficiency(dB) Efficiency(%) 2400.00 -3.52 -9.66 10.82 2410.00 -3.43 -9.41 11.45 2420.00 -3.27 -9.33 11.68 2430.00 -3.28 -9.23 11.95 2440.00 -3.26 -9.21 12.00 2450.00 -3.37 -9.27 11.83 2460.00 -3.61 -9.46 11.32 2470.00 -3.89 -9.76 10.56 2480.00 -4.21 -10.04 9.90 R Aitenuo Antenna Co.,Ltd 3.4 Radiation pattern (Free space-L) Aitenuo Antenna Co.,Ltd 3.4 Radiation pattern (Free space-R) Aitenuo Antenna Co.,Ltd 3.5 Radiation pattern (Head phantom-L) Aitenuo Antenna Co.,Ltd 3.5 Radiation pattern (Head phantom-R) Aitenuo Antenna Co.,Ltd 4. OTA test data of the whole machine Bluetooth BR 2# (Free Space) L R Channel Frequency(MHz) TRP(dBm) Channel Frequency(MHz) TRP(dBm) 0 2402 0.21 0 2402 1.56 39 2441 3.16 39 2441 4.04 78 2480 5.27 78 2480 4.88 Channel Frequency(MHz) TIS(dBm) Channel Frequency(MHz) TIS(dBm) 0 2402 -86.17 0 2402 -87.16 39 2441 -87.4 39 2441 -87.66 78 2480 -88.94 78 2480 -88.56 Bluetooth BR 1# (Free Space) L R Channel Frequency(MHz) TRP(dBm) Channel Frequency(MHz) TRP(dBm) 0 2402 1.02 0 2402 2.34 39 2441 3.51 39 2441 4.19 78 2480 3.79 78 2480 3.18 Channel Frequency(MHz) TIS(dBm) Channel Frequency(MHz) TIS(dBm) 0 2402 -87.76 0 2402 -87.48 39 2441 -88.92 39 2441 -88.23 78 2480 -89.26 78 2480 -88.74 Aitenuo Antenna Co.,Ltd 4. OTA test data of the whole machine Bluetooth BR 2# (head phantom) L R Channel Frequency(MHz) TRP(dBm) Channel Frequency(MHz) TRP(dBm) 0 2402 -2.04 0 2402 -0.22 39 2441 -0.78 39 2441 -0.47 78 2480 -2.15 78 2480 -2.4 Channel Frequency(MHz) TIS(dBm) Channel Frequency(MHz) TIS(dBm) 0 2402 -83.02 0 2402 -83.91 39 2441 -83.63 39 2441 -84.44 78 2480 -83.51 78 2480 -84.11 Bluetooth BR 1# (head phantom) L R Channel Frequency(MHz) TRP(dBm) Channel Frequency(MHz) TRP(dBm) 0 2402 -0.41 0 2402 -1.48 39 2441 -0.07 39 2441 0.1 78 2480 -2.02 78 2480 -1.16 Channel Frequency(MHz) TIS(dBm) Channel Frequency(MHz) TIS(dBm) 0 2402 -83.83 0 2402 -83.41 39 2441 -84.28 39 2441 -84.1 78 2480 -83.88 78 2480 -84.49 Aitenuo Antenna Co.,Ltd 5. Assembly requirements 5.1, no special equipment requirements. Aitenuo Antenna Co.,Ltd Test mobile phone Samsung S8 Omnidirectional listening to music (M) 13 6. Practical distance test Test location: Longchang Road, South Gate of Meisheng Chuanggu

Report No.: Ti-EE26070494-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 122 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen TEST REPORT Applicant: Ugreen Group Limited Address: URGEEN Building, Longcheng Industrial Park, Longguanxi Road, Longhua, ShenZhen, China Equipment Type: UGREEN EchoBuds Pro Model Name: WS226 Brand Name: FCC ID: 2AQI5-WS226 Test Standard: 47 CFR Part 15 Subpart C (refer to section 3.1) Sample Arrival Date: Jul. 14, 2026 Test Date: Jul. 17, 2026 - Jul. 30, 2026 Date of Issue: Aug. 14, 2026 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie Zhu Checked by: Li Ganming Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: Ti-EE26070494-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 122 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Revision History Version Issue Date Revisions Rev. 01 Aug. 14, 2026 Initial Issue 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 2.5 Additional Instructions ................................................................................................... 8 3 SUMMARY OF TEST RESULTS ............................................................................................. 10 3.1 Test Standards ........................................................................................................... 10 3.2 Test Verdict ................................................................................................................ 10 4 GENERAL TEST CONFIGURATIONS .................................................................................... 11 4.1 Test Environments ...................................................................................................... 11 4.2 Test Equipment List .................................................................................................... 11 4.3 Test Software List ....................................................................................................... 12 4.4 Measurement Uncertainty ........................................................................................... 12 4.5 Description of Test Setup ........................................................................................... 13 4.6 Measurement Results Explanation Example ............................................................... 16 5 TEST ITEMS ........................................................................................................................... 17 5.1 Antenna Requirements ............................................................................................... 17 5.2 Output Power ............................................................................................................. 18 5.3 Occupied Bandwidth ................................................................................................... 20 5.4 Conducted Spurious Emission .................................................................................... 30 Report No.: Ti-EE26070494-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 122 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen 5.5 Band Edge (Authorized-band band-edge) ................................................................... 41 5.6 Conducted Emission ................................................................................................... 48 5.7 Radiated Spurious Emission ....................................................................................... 53 5.8 Band Edge (Restricted-band band-edge) .................................................................... 86 5.9 Power Spectral density (PSD) .................................................................................... 97 ANNEX A TEST SETUP PHOTOS ........................................................................................... 103 1 Radiated Test Photo ................................................................................................. 103 2 Conducted Test Photo .............................................................................................. 109 3 Conducted Emission ................................................................................................. 110 ANNEX B EUT EXTERNAL PHOTOS ....................................................................................... 112 ANNEX C EUT INTERNAL PHOTOS ........................................................................................ 120 Repo…

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Report No.: Ti-EE26070494-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 62 / 122 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Note 1: The marked spikes near 2400 MHz with circle should be ignored because they are Fundamental signal. Note 2: The spurious from 18GHz-25GHz is noise only, do not show on the report. Left Ear GFSK (BLE 1Mbps) LOW CHANNEL 1 GHz to 18 GHz, ANT H No. Frequency (MHz) Results (dBuV/m) Limit (dBuV/m) Margin (dB) Detector Table (Degree) Height (cm) Antenna Verdict 1 1077.400 42.20 74.0 31.80 Peak 177.00 200 Horizontal Pass 1** 1077.400 30.97 54.0 23.03 AV 177.00 200 Horizontal Pass 2 2401.800 91.63 -- -- Peak 8.00 200 Horizontal N/A 2** 2401.800 90.42 -- -- AV 8.00 200 Horizontal N/A 3 4803.750 52.28 74.0 21.72 Peak 31.00 150 Horizontal Pass 3** 4803.750 47.91 54.0 6.09 AV 31.00 150 Horizontal Pass 4 4804.500 52.92 74.0 21.08 Peak 360.00 100 Horizontal Pass 4** 4804.500 47.48 54.0 6.52 AV 360.00 100 Horizontal Pass 5 7206.500 51.34 74.0 22.66 Peak 360.00 150 Horizontal Pass 5** 7206.500 47.68 -- -47.68 AV 360.00 150 Horizontal N/A 6 16113.937 53.79 74.0 20.21 Peak 258.00 300 Horizontal Pass 6** 16113.937 44.42 54.0 9.58 AV 258.00 300 Horizontal Pass Report No.: Ti-EE26070494-602 Tel: +86-755-66850100 E-mail: [email protected] Page No. 63 / 122 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen GFSK (BLE 1Mbps) LOW CHANNEL 1 GHz to 18 GHz, ANT…

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