2AZEQ-B172Wireless Earphone

Rev1/26/2023 (NOTHINGTECHNOLOGYLIMITED) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-06-14 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2AZEQ-B172 [NOTHINGTECHNOLOGYLIMITED]certifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903of theFCCrules. Sincerely, (Applicantsignature) (JathanLiu) Rev1/26/2023 (NOTHINGTECHNOLOGYLIMITED) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-06-14 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2AZEQ-B172 [NOTHINGTECHNOLOGYLIMITED]certifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesor affiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (JathanLiu)

Date: 23 May 2024 NOTHING TECHNOLOGY LIMITED To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: The NOTHING TECHNOLOGY LIMITED the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on the behalf of the NOTHING TECHNOLOGY LIMITED solely in matters relating to the application for an FCC equipment authorization for FCC ID: 2AZEQ-B172 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 same effect as acts of the NOTHING TECHNOLOGY LIMITED The NOTHING TECHNOLOGY 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. Sincerely, Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

Date:11June2024 NOTHINGTECHNOLOGYLIMITED To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 Re:NOTHINGTECHNOLOGYLIMITED FCCID:2AZEQ-B172 FCCCertificationConfidentialityRequest Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.NOTHINGTECHNOLOGYLIMITEDrequeststhatthefollowing documentsregardingthissubmissionforFCCID:2AZEQ-B172bekept confidential: ExhibitTypeFileName BlockDiagramBlockDiagram.pdf SchematicsSchematics.pdf OperationalDescriptionOperationalDescription.pdf Tune-upTune-up.pdf Andbelowexhibitkeptshort-termconfidential(180days): ExternalphotosExternalphotos.pdf Testsetupphotostestphoto.pdf InternalphotosInternalphotos.pdf UsermanualUsermanual.pdf Thosedocumentscontaindetailedsystemandequipmentdescriptionandrelated informationabouttheproductwhichNOTHINGTECHNOLOGYLIMITEDconsidersto beconfidentialproprietary,acustomdesignand,otherwise,notreleasabletothe generalpublic.Sincethisdesignisabasisformwhichfuturetechnological productswillevolve,NOTHINGTECHNOLOGYLIMITEDconsidersthis informationwouldbeofbenefittoitscompetitors,andthatthedisclosureofthe informationinthesedocumentswouldgivecompetitorsanunfairadvantageinthe market. YoursSincerely, JathanLiu

NOTHING TECHNOLOGY LIMITED To: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: Confidentiality Request regarding application for FCC ID: 2AZEQ-B172 We, NOTHING TECHNOLOGY LIMITED, declare that the Wireless Earphone (with FCC ID: 2AZEQ-B172), the left earbud and right earbud have symmetrical design and PCB layout. Except for above mentioned difference, the others are identical. Sincerely, Print Name: Jathan Liu Title: Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

NOTHING TECHNOLOGY LIMITED Label Placement Declaration Sincerely, Print Name: Jathan Liu Title: To Federal Communication Commission Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MID 21046 For the following product, Model Name/Number: Wireless Earphone/ B172 FCC ID:2AZEQ-B172 , IC:2712-B172 The FCC ID&IC will not affix on the earbuds, but described in the product user manual and the product package due to below reasons. The earbud is too small to put theIDlabel on it. Regulatory Manager Signature: . On behalf of Company: NOTHING TECHNOLOGY LIMITED E-mail: [email protected]

Report No.: BL-SZ2440323-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 42 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Phone-2 (2023-11-02) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Address: Equipment Type: Model Name: Brand Name: FCC ID: Test Standard: Maximum SAR: NOTHING TECHNOLOGY LIMITED 80 Cheapside, London, England EC2V 6EE Wireless Earphone B172 cmf by NOTHING 2AZEQ-B172 FCC 47 CFR Part 2.1093 (refer to section 3.1) Head (1 g@0mm): 0.54 W/kg Sample Arrival Date: Apr. 02, 2024 Test Date Apr. 28, 2024 Date of Issue: May 22, 2024 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xiong Lining Checked by: Xu Rui Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ2440323-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 42 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Phone-2 (2023-11-02) 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 22, 2024 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ......................................................................................................... 4 1.1 Test Laboratory .............................................................................................................. 4 1.2 Test Location .................................................................................................................. 4 1.3 Test Environment Condition ........................................................................................... 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 Ancillary Equipment ........................................................................................................ 5 2.5 Technical Information ..................................................................................................... 6 3 SUMMARY OF TEST RESULT ................................................................................................... 7 3.1 Test Standards ............................................................................................................... 7 3.2 Device Category and SAR Limit ..................................................................................... 8 3.3 Test Result Summary ..................................................................................................... 9 3.4 Test Uncertainty ........................................................................................................... 10 4 MEASUREMENT SYSTEM ....................................................................................................... 11 4.1 Specific Absorption Rate (SAR) Definition ................................................................... 11 4.2 DASY SAR System ...................................................................................................... 12 5 SYSTEM VERIFICATION .......................................................................................................... 19 5.1 Purpose of System Check ............................................................................................ 19 5.2 System Check Setup .................................................................................................... 19 6 TEST POSITION CONFIGURATIONS ...................................................................................... 20 6.1 Head Exposure Conditions ........................................................................................... 20 7 MEASUREMENT PROCEDURE ............................................................................................... 22 Report No.: BL-SZ2440323-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 42 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Phone-2 (2023-11-02) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 7.1 Measurement Process Diagram ................................................................................... 22 7.2 SAR Scan General Requirement ................................................................................. 23 7.3 Measurement Procedure .............................................................................................. 24 7.4 Area & Zoom Scan Procedure ..................................................................................... 24 8 CONDUCTED RF OUPUT POWER .......................................................................................... 25 8.1 Bluetooth ...................................................................................................................... 25 9 TEST EXCLUSION CONSIDERATION ..................................................................................... 27 9.1 Antenna location sketch ............................................................................................... 27 9.2 SAR Test Exclusion Consideration Table .................................................................... 28 10 TEST RESULT .......................................................................................................................... 31 10.1 Bluetooth ...................................................................................................................... 31 11 SAR Measurement Variability ..…

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Report No.: BL-SZ2440323-702 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 42 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Phone-2 (2023-11-02) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Address: Equipment Type: Model Name: Brand Name: FCC ID: Test Standard: Maximum SAR: NOTHING TECHNOLOGY LIMITED 80 Cheapside, London, England EC2V 6EE Wireless Earphone B172 cmf by NOTHING 2AZEQ-B172 FCC 47 CFR Part 2.1093 (refer to section 3.1) Head (1 g@0mm): 0.65 W/kg Sample Arrival Date: Apr. 02, 2024 Test Date Apr. 28, 2024 Date of Issue: May 22, 2024 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Xiong Lining Checked by: Xu Rui Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: BL-SZ2440323-702 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 42 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Phone-2 (2023-11-02) 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 22, 2024 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ......................................................................................................... 4 1.1 Test Laboratory .............................................................................................................. 4 1.2 Test Location .................................................................................................................. 4 1.3 Test Environment Condition ........................................................................................... 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 Ancillary Equipment ........................................................................................................ 5 2.5 Technical Information ..................................................................................................... 6 3 SUMMARY OF TEST RESULT ................................................................................................... 7 3.1 Test Standards ............................................................................................................... 7 3.2 Device Category and SAR Limit ..................................................................................... 8 3.3 Test Result Summary ..................................................................................................... 9 3.4 Test Uncertainty ........................................................................................................... 10 4 MEASUREMENT SYSTEM ....................................................................................................... 11 4.1 Specific Absorption Rate (SAR) Definition ................................................................... 11 4.2 DASY SAR System ...................................................................................................... 12 5 SYSTEM VERIFICATION .......................................................................................................... 19 5.1 Purpose of System Check ............................................................................................ 19 5.2 System Check Setup .................................................................................................... 19 6 TEST POSITION CONFIGURATIONS ...................................................................................... 20 6.1 Head Exposure Conditions ........................................................................................... 20 7 MEASUREMENT PROCEDURE ............................................................................................... 22 Report No.: BL-SZ2440323-702 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 42 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Phone-2 (2023-11-02) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 7.1 Measurement Process Diagram ................................................................................... 22 7.2 SAR Scan General Requirement ................................................................................. 23 7.3 Measurement Procedure .............................................................................................. 24 7.4 Area & Zoom Scan Procedure ..................................................................................... 24 8 CONDUCTED RF OUPUT POWER .......................................................................................... 25 8.1 Bluetooth ...................................................................................................................... 25 9 TEST EXCLUSION CONSIDERATION ..................................................................................... 27 9.1 Antenna location sketch ............................................................................................... 27 9.2 SAR Test Exclusion Consideration Table .................................................................... 28 10 TEST RESULT .......................................................................................................................... 31 10.1 Bluetooth ...................................................................................................................... 31 11 SAR Measurement Variability ..…

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Report No.: BL-SZ2440323-AC 1 / 34 CALIBRATION REPORT F.1 E-Field Probe (EX3DV4 - SN:7607) Report No.: BL-SZ2440323-AC 2 / 34 Report No.: BL-SZ2440323-AC 3 / 34 Report No.: BL-SZ2440323-AC 4 / 34 Report No.: BL-SZ2440323-AC 5 / 34 Report No.: BL-SZ2440323-AC 6 / 34 Report No.: BL-SZ2440323-AC 7 / 34 Report No.: BL-SZ2440323-AC 8 / 34 Report No.: BL-SZ2440323-AC 9 / 34 Report No.: BL-SZ2440323-AC 10 / 34 Report No.: BL-SZ2440323-AC 11 / 34 Report No.: BL-SZ2440323-AC 12 / 34 Report No.: BL-SZ2440323-AC 13 / 34 Report No.: BL-SZ2440323-AC 14 / 34 Report No.: BL-SZ2440323-AC 15 / 34 Report No.: BL-SZ2440323-AC 16 / 34 Report No.: BL-SZ2440323-AC 17 / 34 Report No.: BL-SZ2440323-AC 18 / 34 Report No.: BL-SZ2440323-AC 19 / 34 Report No.: BL-SZ2440323-AC 20 / 34 Report No.: BL-SZ2440323-AC 21 / 34 Report No.: BL-SZ2440323-AC 22 / 34 Report No.: BL-SZ2440323-AC 23 / 34 F.2 Data Acquisition Electronics (DAE4 - SN:1710) Report No.: BL-SZ2440323-AC 24 / 34 Report No.: BL-SZ2440323-AC 25 / 34 Report No.: BL-SZ2440323-AC 26 / 34 F.3 2450 MHz Dipole Report No.: BL-SZ2440323-AC 27 / 34 Report No.: BL-SZ2440323-AC 28 / 34 Report No.: BL-SZ2440323-AC 29 / 34 Report No.: BL-SZ2440323-AC 30 / 34 Report No.: BL-SZ2440323-AC 31 / 34 Report No.: BL-SZ2440323-AC 32 / 34 Report No.: BL-SZ2440323-AC 33 / 34 Report No.: BL-SZ2440323-AC 34 / 34 D2450V2 Dipole impedance and return loss Validation Meas. Results Current Meas. Previous Meas. Max. Deviation Meas. Data 2023.05.17 2022.05.18 / Return Loss(dB) -26.656 -26.401 0.97% Impedance 54.73 Ω -1.149 jΩ 54.102 Ω +2.830 jΩ -3.979Ω (Imaginary part) Return Loss for Head TSL Impedance for Head TSL --END OF REPORT--

QR/RD-P01-06B SPECIFICATION 联创23272 Lchse23272LeftearBluetoothAntenna ProductSpecification 客户 connection 联创 Lchse 频段 frequencyrange 2400~2500MHz 项目名称 entryname 23272 版本 edition V5.1 物料编号 MaterialNo 12-3272X-123 颜色 Color 黑色 Black 客户料号 CustomerItem Number 20.11.346620 RF设计 RFDesign 胡鹏 Peng.Hu 结构设计 StructuralDesign 周锐斌 RuiBin.Zhou 品质经理 QualityManager 杨进 Jin.Yang 技术总监 TechnicalDirector 张磊 Lei.Zhang 日期 Date 2024-6-11 客户确认： Customerconfirmation: 装配是否符合贵司要求：□OK□NG Whethertheassemblymeetsyourcompany'srequirements：□OK□NG ConfidentialInformation Page2 V1.0 创建 found 2024-6-11 www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd ConfidentialInformation Indexes ProjectDescription........................................................................................................................4 BTantenna.....................................................................................................................................4 1specifications.......................................................................................................................................4 1.1Electricalspecificationsandstandards........................................................................5 1.1.1Electricalperformanceindex.....................................................................................5 1.2Structuralspecificationsandstandards.......................................................................5 1.2.1MotherboardMatchingDiagram...................................................................................5 1.2.2Antennacomposition...........................................................................................................5 2、TheEquipmentofActiveTest...............................................................................................6 3、Test.....................................................................................................................................................7 3.1(VSWR)Testofstandingwave(VSWR)...........................................................................7 3.1.1Testconnection...................................................................................................................7 3.2 TRPTISTestingofefficiency,power(TRP),sensitivity(TIS)...................... 7 3.2.1Testsite............................................................................................................................7 3.2.2TestedInstruments........................................................................................................7 3.2.3testdata.............................................................................................................................7-8 4VSWRParameterdiagram............................................................................................................9 5有源场型图PassiveFieldPatternDiagram..............................................................................................9-10 无源场型图Passivefieldpatterndiagram...................................................................................................11 conclusion........................................................................................................................................11 scheduledrawing................................................................................................................................12 t.........................................................................................................13 ..............................................................................................................14 Saltspraytestreport...........................................................................................................15 ROHSROHSreport.............................................................................................................................16 .Packagingdiagra................................................................................................................................17 www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page3 ConfidentialInformation ProjectDescription CustomerName 联创 Lchse Typeofcomplete machine 蓝牙天线 Bluetoothantenna AntennaModel B172 Antennaband 2400~2500MHz Antennaform PIFA天线 PIFAantenna Antennapolarity 线性极化 Linearpolarization Hardwareversion 主板：左耳 Motherboard:leftear Antennamanufacturer 深圳市大显科技有限公司 Shenzhendaxiantechnologyco.,ltd Testinglaboratory SATIMO微波实验室 SATIMOmicrowavelaboratory BTAntennaassembly 1specifications 本报告主要提供 23272 项目天线的各项电气和结构性能参数的测试状况。下图为大显设 计的天线图片。 Thisreportmainlyprovidesthetestingstatusofvariouselectricalandstructuralperformance parametersoftheantennaforthe23272project.Thefollowingimageshowsanantennawith alargedisplaydesign. antennaappearingdiagram www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page4 ConfidentialInformation 1.1Electricalspecificationsandstandards 1.1.1Electricalperformanceindex 天线工作频段在 2400~2500MHz 下表是大显设计和量产天线的电性能的指标 . Theoperatingfrequencybandoftheantennaisbetween2400and2500MHz.Thefollowingtable showstheelectricalperformanceindicatorsoflargedisplaydesignandmassproductionantennas. FrequencyRangeFrequency(MHz)VSWR BT 2400~2500≤2 2Structuralspecificationsandstandards 1.2.1MotherboardMatchingDiagram 1.2.2Antennacomposition 天线主要是由FPC组成。 Theantennaism…

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QR/RD-P01-06B SPECIFICATION Lchse23272RightearBluetoothAntenna ProductSpecification 客户 connection 联创 Lchse 频段 frequencyrange 2400~2500MHz 项目名称 entryname 23272 版本 edition V5.1 物料编号 MaterialNo 22-3272X-123 颜色 Color 白色 White 客户料号 CustomerItem Number 2 20.11.346720 RF设计 RFDesign 胡鹏 Peng.Hu 结构设计 StructuralDesign 周锐斌 RuiBin.Zhou 品质经理 QualityManager 杨进 Jin.Yang 技术总监 TechnicalDirector 张磊 Lei.Zhang 日期 Date 2024-6-11 客户确认： Customerconfirmation: 装配是否符合贵司要求：□OK□NG Whethertheassemblymeetsyourcompany'srequirements：□OK□NG ConfidentialInformation Page2 V1.0 创建 found 2024-6-11 www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd ConfidentialInformation Indexes ProjectDescription........................................................................................................................4 BTantenna.....................................................................................................................................4 1specifications.......................................................................................................................................4 1.1Electricalspecificationsandstandards........................................................................5 1.1.1Electricalperformanceindex.....................................................................................5 1.2Structuralspecificationsandstandards.......................................................................5 1.2.1MotherboardMatchingDiagram...................................................................................5 1.2.2Antennacomposition...........................................................................................................5 2、TheEquipmentofActiveTest...............................................................................................6 3、Test.....................................................................................................................................................7 3.1(VSWR)Testofstandingwave(VSWR)...........................................................................7 3.1.1Testconnection...................................................................................................................7 3.2TRPTISTestingofefficiency,power(TRP),sensitivity(TIS)......................7 3.2.1Testsite............................................................................................................................7 3.2.2TestedInstruments........................................................................................................7 3.2.3testdata.............................................................................................................................7-8 4VSWRParameterdiagram............................................................................................................9 5有源场型图PassiveFieldPatternDiagram..............................................................................................9-10 无源场型图Passivefieldpatterndiagram...................................................................................................11 conclusion........................................................................................................................................11 scheduledrawing................................................................................................................................12 t .........................................................................................................13 ..............................................................................................................14 Saltspraytestreport...........................................................................................................15 ROHSROHSreport.............................................................................................................................16 .Packagingdiagra................................................................................................................................17 www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page3 ConfidentialInformation ProjectDescription CustomerName 联创 Lchse Typeofcomplete machine 蓝牙天线 Bluetoothantenna AntennaModel B172 Antennaband 2400~2500MHz Antennaform PIFA天线 PIFAantenna Antennapolarity 线性极化 Linearpolarization Hardwareversion 主板：右耳 Motherboard:Rightear Antennamanufacturer 深圳市大显科技有限公司 Shenzhendaxiantechnologyco.,ltd Testinglaboratory SATIMO微波实验室 SATIMOmicrowavelaboratory BTAntennaassembly 1specifications 本报告主要提供23272项目天线的各项电气和结构性能参数的测试状况。下图为大显设 计的天线图片。 Thisreportmainlyprovidesthetestingstatusofvariouselectricalandstructuralperformance parametersoftheantennaforthe23272project.Thefollowingimageshowsanantennawith alargedisplaydesign. antennaappearingdiagram www.Topant.com.cn Confidentialityrequirements ShenzhenDaxianTechnologyCo.,Ltd.alreadypossessestheinformationprovidedbytheproprietarytechnology,which shouldbestrictlyconfidentialandnotallowedtobedisclosedtoanypersonorcompanywithoutthepriorwrittenconsentof ShenzhenDaxianTechnologyCo.,Ltd Page4 ConfidentialInformation 1.1Electricalspecificationsandstandards 1.1.1Electricalperformanceindex 天线工作频段在 2400~2500MHz 下表是大显设计和量产天线的电性能的指标 . Theoperatingfrequencybandoftheantennaisbetween2400and2500MHz.Thefollowingtable showstheelectricalperformanceindicatorsoflargedisplaydesignandmasspr…

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