2BA4V-HIFUTUREHECLBWireless Earbuds with Bluetooth

FCCregulatoryconformance： ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwo conditions: (1)Thisdevicemaynotcauseharmfulinterference. (2)Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause undesiredoperation. NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassB digitaldevice,pursuanttopart15oftheFCCRules.Theselimitsaredesignedto providereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation. Thisequipmentgeneratesusesandcanradiateradiofrequencyenergyand,ifnot installedandusedinaccordancewiththeinstructions,maycauseharmfulinterferenceto radiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurin aparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioor televisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the userisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing measures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. -Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiver isconnected. -Consultthedealeroranexperiencedradio/TVtechnicianforhelp NOTE:ThemanufacturerisnotresponsibleforanyradioorTVinterferencecausedby unauthorizedmodificationstothisequipment.Suchmodificationscouldvoidtheuser’s authoritytooperatetheequipment. RFExposure ThisequipmentcomplieswithFCCradiationexposurelimitssetforthforan uncontrolledenvironment. FCCID:2BA4V-HIFUTUREHECLB

SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITED B-206,BlockB,TsinghuaUnisInforportHi-TechPark(North),NanshanDistrict Shenzhen,China Date:May26,2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BA4V-HIFUTUREHECLB USAgent–AttestationStatement/Part2.911(d)(7) SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITEDcertifies,thatasofMay26,2023, wehavedesignatedFCCUSAgent,LLCtoacceptserviceofprocessonourbehalfforFCCID: 2BA4V-HIFUTUREHECLB. SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITED,acceptstomaintainanagentof serviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S., ortheconclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingthe equipment,whicheverislater. FCCUSAgent,LLC,acceptsasofthedateofthefilingofthisapplication,theobligationofbeing thedesignatedagentforthepurposeofacceptingserviceofprocessonbehalfofSHENZHEN FUTUREACCESSTECHNOLOGYCO.,LIMITEDforFCCID:2BA4V-HIFUTUREHECLB. DesignatedAgentInformation: CompanyName:FCCUSAgent,LLC Address:3722IllinoisAvenue,SaintCharles,IL,60174,USA FRN:0033402884 ContactPerson:TimPayne Phone:708-571-3148 Email:[email protected] Sincerely, Company:SHENZHENFUTUREACCESS TECHNOLOGYCO.,LIMITED DesignatedAgent:FCCUSAgent,LLC CompanyRepresentative:ZiwenLiuDesignatedAgentRepresentative:TimPayne Signature: Signature:

SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITED To:FederalCommunicationsCommissionDate:2023/05/30 7435OaklandMillsRoad Columbia,MD21046 USA Attestation Section2.911(d)(5)(i)andSection2.911(d)(5)(ii) (KDB986446D01CoveredEquipment) Section2.911(d)(5)(i) SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITEDcertifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules. Section2.911(d)(5)(ii) SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITEDcertifiesthat,asof thedateofthefilingoftheapplication,theapplicantisnotidentifiedontheCovered List(asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentity producing“covered”equipment. TypeofEquipmentsubjecttoFCCCertification: FCCID:2BA4V-HIFUTUREHECLB Ifyouhaveanyquestions,pleasefeelfreetocontactme ContactPerson:ZiwenLiu PositionintheCompany:Manager DateofSignature:5/30/2013 _______________________ Signatory SHENZHENFUTUREACCESSTECHNOLOGYCO.,LIMITED

Report No.: BL-SZ2350123-AW 1 / 4 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Report No.: BL-SZ2350123-AW 2 / 4 LEFT VIEW OF EUT RIGHT VIEW OF EUT Report No.: BL-SZ2350123-AW 3 / 4 TOP VIEW OF EUT BOTTOM VIEW OF EUT Report No.: BL-SZ2350123-AW 4 / 4 Accessory-Charging Case Accessory-Type-C Cable --BLANK BELOW--

镭雕 尺寸：0.337mm x 7mm 左右居中对齐

Report No.: BL-SZ2350123-AI 1 / 3 EUT INTERNAL PHOTOS EUT UNCOVER VIEW 1 EUT UNCOVER VIEW 2 Report No.: BL-SZ2350123-AI 2 / 3 MAIN BOARD TOP VIEW MAIN BOARD REAR VIEW RF Chip Ceramic Antenna Report No.: BL-SZ2350123-AI 3 / 3 BATTERY (FRONT) BATTERY (REAR) --BLANK BELOW--

Report No.: BL-SZ2350123-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-08-15) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: SHENZHEN FUTURE ACCESS TECHNOLOGY CO., LIMITED Address: B-206, Block B, Tsinghua Unis Inforport, Hi-Tech Park(North), Nanshan District, Shenzhen, China Equipment Type: Wireless Earbuds Model Name: ColorBuds2 (refer section 2.4) Brand Name: HiFuture FCC ID: 2BA4V-HIFUTUREHECLB Test Standard: 47 CFR Part 2.1093 KDB 447498 D04 v01 Sample Arrival Data: May 10, 2023 Test Date May 13, 2023 - May 18, 2023 Date of Issue: May 25, 2023 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie Zhu Checked by: Xu Rui Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ2350123-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-08-15) 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 May 25, 2023 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 Factory Information ....................................................................................................... 4 2.4 General Description for Equipment under Test (EUT) ................................................... 4 2.5 Ancillary Equipment ...................................................................................................... 5 2.6 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.: BL-SZ2350123-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-08-15) 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-SZ2350123-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 10 Web: www.titcgroup.com Template No.: TRP-FCC-Portable-2 (2022-08-15) 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 SHENZHEN FUTURE ACCESS TECHNOLOGY CO., LIMITED Address B-206, Block B, Tsinghua Unis Inforport, Hi-Tech Park(North), Nanshan District, Shenzhen, China 2.2 Manufacturer Information Manufacturer SHENZHEN FUTURE AUDIO TECHNOLOGY CO., LTD Address 4~5F, Block A, Jinchi 3rd Industrial Park, Jiuwei, Hangcheng street, Baoan District, Shenzhen, Guangdong, China 2.3 Factory Information Factory N/A Address N/A 2.4 General Description for Equipment under Test (EUT) EUT Name Wireless Earbuds Model Name Under Test ColorBuds2 Series Model Name FlyBuds3, TrueAir Pro Description of Model name differentiation The Circuit, PCB Layout, Electrical Parts, and appearance of the following product(s) are identical to the basic models, except the model name and product name changed for different market and customer, the others are the same. (this information provided by the customer) Hardware Version V1.0 Software Version V1.0 Dimensions (Approx.) N/A Weight (Approx.) N/A Report No…

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P/N: HLX321605A6 SymbolsLWTA Dimensions3.2+/-0.21.6+/-0.20.5+/-0.10.4+/-0.1 NumberTerminal Name ① INPUT ② NC Dimensions（Unit：mm） L w ①② T ( Side View ) ( Bottom View ) ( Top View ) A Features 1.Surface Mounted Devices with a small dimension of 3.6 x 1.6 x 0.5 mm 3 meet future miniaturization trend. 2.Embedded and LTCC (Low Temperature Co-fired Ceramic) technology is able to future integrate with system design as well as beautifying the housing of final product. 3. High Stability in Temperature / Humidity Change Applications 1. Bluetooth 2. Wireless LAN 3. ISM band 2.4GHz wireless applications Evaluation Board and Matching Circuits Unit:mm 50ΩFeeding Line GND VIA πType Matching Network Clearance Area 6.0 1.25 2.25 0.74 0.74 1.8 3.34 3.77 1.0 1.63 5.0 5.6nH 0.5pF P/N: HLX321605A6 Electrical Characteristics Characteristic curve No. ItemSpecifications 1 Central Frequency2545MHz 2 Band Width 100 MHz typ. 3 Peak Gain 4.08 dBi 4 Return Loss ≤2.0 5 Polarization Linear 6 Azimuth Beam width Omni-directional 7 Impedance 50 Ω P/N: HLX321605A6 Radiation Pattern coordinates： X-Z Plane X-Y Plane P/N: HLX321605A6 3D Radiation Pattern Frequency (MHz)240024502500 Avg. Gain (dBi)-1.91-1.30-1.48 Peck Gain (dBi)1.764.082.53 Efficiency (%)72.178.271.8 P/N: HLX321605A6 Y-Z Plane Dependability Test Temperature range Relative Humidity range Operating Temperature range Storage Temperature range 25±5°C 55~75%RH -40°C~+85°C -40°C~+85°C Vibration Resist The device should fulfill the electrical specification after applied to the vibration of 10 to 55Hz with amplitude of 1.5mm for 2 hours each in X , Y and Z directions. Drop Shock The device should have no mechanical damage after dropping onto the hard wooden board from the height of 100cm for 3 times each facet of the 3 dimensions of the device. Solder Heat Proof The device should be satisfied after preheating at 120°C~150°C for 120 seconds and dipping in soldering Sn at 255°C+10°C for 5±0.5 seconds，or electric iron 300°C-10°C for 3±0.5 seconds， without damnify. Adhesive Strength of Termination The device have no remarkable damage or removal of the termination after horizontal force of 5N(≦0603)；10N(>0603)with 10±1 seconds. Bending Resist Test Weld the product to the center part of the PCB with the thickness 1.6±0.2mm or 0.8±0.1mm as the illustration shows, and keep exerting force arrow-ward on it at speed of :1mm/S , and hold for 5±1S at the position of 1.5mm bending distance , so far , any peeling off of the product metal coating should not be detected . P/N: HLX321605A6 Moisture Proof The device should fulfill the electrical specification after exposed to the temperature 60±2°Cand the relative humidity 90~95% RH for 96 hours and 1~2 hours recovery time under normal condition. High Temperature Endurance The device should fulfill the electrical specification after exposed to temperature 85±5°Cfor 96±2 hours and 1~2 hours recovery time under normal temperature. Low Temperature Endurance The device should fulfill the electrical specification after exposed to the temperature -40°C±5°C for 96±2 hours and to 2 hours recovery time under normal temperature. Temperature Cycle Test The device should fulfill the electrical specification after exposed to the low temperature -40°C and high temperature +85°C for 30±2 min each by 5 cycles and 1 to 2 hours recovery time under normal temperature. Reflow Soldering Standard Condition P/N: HLX321605A6 Packaging and Dimensions (3216) Plastic Tape Remarks for Package Reserve a length of 150~200mm for the trailer of the carrier and 250~300 mm for the leader of the carrier and further 250mm of cover tape at the leading part of the carrier. Reel（6000 pcs/Reel） Storage Period Product should be used within six months of receipt. MSL 1 / Storage Temperature Range : <30 degree C, Humidity : <85%RH P/N: HLX321605A6

Report No.: BL-SZ2350123-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 68 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (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: SHENZHEN FUTURE ACCESS TECHNOLOGY CO., LIMITED Address: B-206, Block B, Tsinghua Unis Inforport, Hi-Tech Park(North), Nanshan District, Shenzhen, China Equipment Type: Wireless Earbuds Model Name: ColorBuds2 (refer section 2.4) Brand Name: HiFuture FCC ID: 2BA4V-HIFUTUREHECLB Test Standard: 47 CFR Part 15 Subpart C (refer section 3.1) Sample Arrival Date: May 10, 2023 Test Date: May 13, 2023 - May 18, 2023 Date of Issue: May 25, 2023 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Julie Zhu Checked by: Ye Hongji Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2350123-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 68 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (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 May 25, 2023 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 Factory Information ........................................................................................................ 5 2.4 General Description for Equipment under Test (EUT) ................................................... 5 2.5 Technical Information ..................................................................................................... 6 3 SUMMARY OF TEST RESULTS ................................................................................................. 8 3.1 Test Standards ............................................................................................................... 8 3.2 Test Verdict .................................................................................................................... 8 4 GENERAL TEST CONFIGURATIONS ........................................................................................ 9 4.1 Test Environments ......................................................................................................... 9 4.2 Test Equipment List ........................................................................................................ 9 4.3 Test Software List ........................................................................................................... 9 4.4 Measurement Uncertainty ............................................................................................ 10 4.5 Description of Test Setup ............................................................................................. 10 4.6 Measurement Results Explanation Example ................................................................ 13 5 TEST ITEMS .............................................................................................................................. 14 5.1 Antenna Requirements ................................................................................................. 14 5.2 Frequency Hopping Systems ....................................................................................... 15 5.3 Number of Hopping Frequencies ................................................................................. 17 5.4 Peak Output Power ...................................................................................................... 18 Report No.: BL-SZ2350123-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 68 Web: www.titcgroup.com Template No.: TRP-FCC Part 15.247 (2022-01-12) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 5.5 Occupied Bandwidth .................................................................................................... 19 5.6 Carrier Frequency Separation ...................................................................................... 20 5.7 Time of Occupancy (Dwell time) .................................................................................. 21 5.8 Conducted Spurious Emission & Authorized-band band-edge .................................... 23 5.9 Conducted Emission .................................................................................................... 24 5.10 Radiated Spurious Emission ........................................................................................ 25 5.11 Band Edge (Restricted-band band-edge) ..................................................................... 27 ANNEX A TEST RESULT ............................................................................................................. 28 A.1 Number of Hopping Frequency .................................................................................... 28 A.2 Peak Output Power ...................................................................................................... 29 A.3 20 dB and 99% bandwidth ....................................................................…

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Report No.: BL-SZ2350123-AR 1 / 5 TEST SETUP PHOTOS 1 Radiated Test Photo Below 30MHz Close-up Report No.: BL-SZ2350123-AR 2 / 5 30MHz-1GHz Close-up Report No.: BL-SZ2350123-AR 3 / 5 Above 1GHz Close-up Report No.: BL-SZ2350123-AR 4 / 5 2 Conducted Test Photo Conducted Test-BT 3 Conducted Emissions Test Photo 1 Report No.: BL-SZ2350123-AR 5 / 5 Test Photo 2 --BLANK BELOW--