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2AFSG-G305wireless earbuds

Dongguan Jin wen hua digital technology Co., LTD.
wireless earbuds - FCC ID 2AFSG-G305 - Dongguan Jin wen hua digital technology Co., LTD.
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Application Details

Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
Date of Grant
Aug 22, 2024
Application Purpose
Original Equipment
Date of Application
Aug 21, 2024
Equipment Note
wireless earbuds
Frequency Range
2402.00000000 - 2480.00000000
Company
Dongguan Jin wen hua digital technology Co., LTD.
Country
China

Documents & Files

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Users Manual

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Attestation Statements

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

Dongguan Jin wen hua digital technology Co.,LTD. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024-08-14 FCC ID: 2AFSG-G305 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Dongguan Jin wen hua digital technology Co.,LTD. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Dongguan Jin wen hua digital technology Co.,LTD. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Applicant: Dongguan Jin wen hua digital technology Co.,LTD. Address: NO.1 Hua Da Road, Long Bei Ling Village, Tangxia Town, Dongguan City, Guangdong, China Contact Person: Luo Peng Tel.: 18802603740 Email: [email protected] Sincerely, Signature:

Attestation Statements

Attestation Statements Date: 2024-08-20 TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID:2AFSG-G305) Dongguan Jin wen hua digital technology Co.,LTD., the undersigned, hereby authorize HOPEK CORPORATION INC to act as our designated U.S. agent for service of process, Dongguan Jin wen hua digital technology Co.,LTD. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. HOPEK CORPORATION INC accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information: Company name: Dongguan Jin wen hua digital technology Co.,LTD. Contact Name: Luo Peng Address: NO.1 Hua Da Road, Long Bei Ling Village, Tangxia Town, Dongguan City, Guangdong, China Telephone No: 18802603740 Email: [email protected] FRN: 0024857831 Signature: Luo Peng U.S. Agent Information: Company Name:HOPEK CORPORATION INC Address:4358 S BANNOCK ST ENGLEWOOD, CO 80110 United States FRN: 0034562900 Contact Name:Peter Davis Telephone No: 561-235-6113 Email: [email protected] Signature: Peter Davis

Cover Letter(s)

Effective Date: April 2, 2020 QSF 7.6.4-8 – Agent Authorization Letter Template Page 1 of 1 Revision Date: Revision: 0 Dongguan Jin wen hua digital technology Co.,LTD. Date:2024-08-14 Product Model Number: G305 ; G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F FCC ID:2AFSG-G305 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that QAI Laboratories Ltd. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. Signature: By: Luo Peng Contact Listed on FCC Wesbite Title: Manager Email: [email protected] On behalf of: Dongguan Jin wen hua digital technology Co.,LTD.

Cover Letter(s)

Dongguan Jin wen hua digital technology Co.,LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 20, 2024 Subject; Request for Confidentiality FCC ID: 2AFSG-G305 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Luo Peng Title: Manager

Cover Letter(s)

Dongguan Jin wen hua digital technology Co.,LTD. Declaration Letter of Model Difference Date: 2024-08-14 Tested Model Number: G305 Adding Model Number(s): G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F All models are identical except the Bluetooth name and model, number, therefore the test performed on the model G305. Yours Sincerely, Applicant: Dongguan Jin wen hua digital technology Co.,LTD. Address: NO.1 Hua Da Road, Long Bei Ling Village, Tangxia Town, Dongguan City, Guangdong, China Contact Person: Luo Peng Tel.: 18802603740 Email: [email protected] Sincerely, Signature:

Cover Letter(s)

2.4GHz2012 Chip Antenna:RANT2012F245C07 Dimension(mm) L2.05+-0.10 W1.20+-0.10 T0. 65+-0.10 No.TerminalName 1Feeding/GNG 2GND Application: WLAN,802.11b/g,Bluetooth,WLAN,etc ... Features SMD,high reliability,ultra Impact,Omni-directional... Part numberInformation RANT2012F245C07 (A)(B)(C)(D)(E)(F) (A)ProductTypeChip Antenna (B) Size Code2.0x1.2mm(+-0.2mm) (C) MaterialHigh K material (D) Frequency2.4 ~ 2.5GHz (E) FeedingmodePIFA& SingleFeeding (F) AntennatypeType=07 ElectricalSpecification WorkingFrequencyRange2400~2484MHz Bandwidth84 (Min.) PeakGain-0.58dBi (Typ.) Impedance50 Ohm Returnloss10 dB ( Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40 ~85 °C Resistanceto SolderingHeats 10sec.( @ 280°C) TerminationNi / Au (Leadless) The specificationis definedon EVB. Dimensionand TerminalConfiguration 咏成國際科技有限公司電話:13530576606 RAINInternationalTechnologyCo., Ltd. 7 / F, BuildingF, ZhichuangPark,Tong'an, Gushu,Shenzhen 2.4GHz2012ChipAntenna:RANT2012F245C07 EvaluationBoardReference PCBDimensionAntennaLayoutReferenceUnit:mm ElectricalCharacteristics ReturnLoss ReturnLoss&Radiation 1 Frequency(MHz) S11(dB) 2400-10.77 2450-24.81 2484-10.243 Radiation Z Y X 2400MHz2450MHz2500MHz Efficiency70.56%75.25%71.01% 2.4GHz2012ChipAntenna:RANT2012F245C07 TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 20127”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTDP PaperType2012 1.50±0.202.30±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.101.57±0.104.0±0.1 2.4GHz2012ChipAntenna:RANT2012F245C07 ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz2012ChipAntenna:RANT2012F245C07 2.4GHz2012ChipAntenna:RANT2012F245C07 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12020/10/15NewDatasheet

External Photos

Page 1 of 4 Report No.: LGT24G164 Appendix - External Photographs of EUT Constructional Details Model: G305 Photo 1 Photo 2 Page 2 of 4 Report No.: LGT24G164 Photo 3 Photo 4 Left earphon e Left earphon e Page 3 of 4 Report No.: LGT24G164 Photo 5 Photo 6 Left earphon e Left earphon e Page 4 of 4 Report No.: LGT24G164 Photo 7 Photo 8 Left earphon e Left earphon e

ID Label/Location Info

Label Size: 12.425 mm*6.655 mm FCC ID: 2AFSG-G305

Internal Photos

Page 1 of 4 Report No.: LGT24G164 Appendix - Internal Photographs of EUT Constructional Details Model: G305 Photo 1 Photo 2 Left earphon e Left earphon e Page 2 of 4 Report No.: LGT24G164 Photo 3 Photo 4 Left earphon e Left earphon e Page 3 of 4 Report No.: LGT24G164 Photo 5 Photo 6 BT ANT Left earphon e Left earphon e Page 4 of 4 Report No.: LGT24G164 Photo 7 Left earphon e

RF Exposure Info

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China RF TEST REPORT Product Name: wireless earbuds Model Name: G305, G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F FCC ID: 2AFSG-G305 Issued For : Dongguan Jin wen hua digital technology Co.,LTD NO.1 hua Da Road,Long Bei Ling Village,Tangxia Town,Dongguan City,Guangdong,china Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT24G164HA01 Sample Received Date: Jul. 25, 2024 Date of Test: Jul. 25, 2024 – Aug. 15, 2024 Date of Issue: Aug. 15, 2024 Report No.: LGT24G164HA01 Page 2 of 9 TEST REPORT CERTIFICATION Applicant: Dongguan Jin wen hua digital technology Co.,LTD Address: NO.1 hua Da Road,Long Bei Ling Village,Tangxia Town,Dongguan City,Guangdong,china Manufacture: Dongguan Jin wen hua digital technology Co.,LTD Address: NO.1 hua Da Road,Long Bei Ling Village,Tangxia Town,Dongguan City,Guangdong,china Product Name: wireless earbuds Trademark: DazDalee,XWIT,Daomim,CHIFENCHY,FORTECLEAR,DBSOARS Model Name: G305, G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC 47CFR §2.1093 KDB 447498 D01 General RF Exposure Guidance v06 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT24G164HA01 Page 3 of 9 TABLE OF CONTENTS 1 . GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST LABORATORY 5 2 . FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 APPENDIX I - PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS 9 Report No.: LGT24G164HA01 Page 4 of 9 Revision History Rev. Issue Date Revisions 00 Aug. 15, 2024 Initial Issue Report No.: LGT24G164HA01 Page 5 of 9 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name: wireless earbuds Trademark: DazDalee,XWIT,Daomim,CHIFENCHY,FORTECLEAR,DBSOARS Model Name: G305 Series Model: G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F Model Difference: All models are identical except the Bluetooth name and model number, therefore the test performed on the model G305. Frequency Bands: Bluetooth: 2402-2480MHz Rating: Input: DC 5V 500mA Battery: Model: 500925 Capacity: 90mAhAh Rated Voltage: 3.7V Model: 502248 Capacity: 500mAh Rated Voltage: 3.7V Hardware Version: V1.0 Software Version: V1.0 1.2 TEST LABORATORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 Report No.: LGT24G164HA01 Page 6 of 9 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in KDB 447498 D01 General RF Exposure Guidance v06 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. Report No.: LGT24G164HA01 Page 7 of 9 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] • [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz. Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Report No.: LGT24G164HA01 Page 8 of 9 2.3 TEST RESULT Turn up Result Mode Turn up Power BT-GFSK 3.5±1dBm BT-π/4-DQPSK 4±1dBm BT-8DPSK 4.5±1dBm The MPE result of worst mode: RF Function Frequency (MHz) Max Turn up Power (dBm) Max Turn up Power (mW) Estimated SAR Limit Ratio Result BT 2441 5.50 3.55 1.109 3 0.370 Pass Note: 1. The estimated SAR≤ 3.0 for 1-g SAR, Separation distance ≤ 5mm, complies with the exemption requirements. Report No.: LGT24G164HA01 Page 9 of 9 APPENDIX I - PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Note: Please see the attached G305_EUT Photos. ※※※※※END OF THE REPORT※※※※※

Test Report

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Shenzhen LGT Test Service Co., Ltd. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China RF TEST REPORT Product Name: wireless earbuds Model Name: G305, G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F FCC ID: 2AFSG-G305 Issued For : Dongguan Jin wen hua digital technology Co.,LTD NO.1 hua Da Road,Long Bei Ling Village,Tangxia Town,Dongguan City,Guangdong,china Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Report Number: LGT24G164RF01 Sample Received Date: Jul. 25, 2024 Date of Test: Jul. 25, 2024 – Aug. 15, 2024 Date of Issue: Aug. 15, 2024 Report No.: LGT24G164RF01 Page 2 of 78 TEST REPORT CERTIFICATION Applicant: Dongguan Jin wen hua digital technology Co.,LTD Address: NO.1 hua Da Road,Long Bei Ling Village,Tangxia Town,Dongguan City,Guangdong,china Manufacturer: Dongguan Jin wen hua digital technology Co.,LTD Address: NO.1 hua Da Road,Long Bei Ling Village,Tangxia Town,Dongguan City,Guangdong,china Product Name: wireless earbuds Trademark: DazDalee,XWIT,Daomim,CHIFENCHY,FORTECLEAR,DBSOARS Model Name: G305, G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.247, Subpart C ANSI C63.10-2013 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT24G164RF01 Page 3 of 78 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 12 2.6 EQUIPMENTS LIST 13 3. EMC EMISSION TEST 14 3.1 CONDUCTED EMISSION MEASUREMENT 14 3.2 RADIATED EMISSION MEASUREMENT 18 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 30 4.1 LIMIT 30 4.2 TEST PROCEDURE 30 4.3 TEST SETUP 31 4.4 EUT OPERATION CONDITIONS 31 4.5 TEST RESULTS 31 5. NUMBER OF HOPPING CHANNEL 32 5.1 LIMIT 32 5.2 TEST PROCEDURE 32 5.3 TEST SETUP 32 5.4 EUT OPERATION CONDITIONS 32 5.5 TEST RESULTS 32 6. AVERAGE TIME OF OCCUPANCY 33 6.1 LIMIT 33 6.2 TEST PROCEDURE 33 6.3 TEST SETUP 33 6.4 EUT OPERATION CONDITIONS 33 6.5 TEST RESULTS 33 7. HOPPING CHANNEL SEPARATION MEASUREMEN 34 7.1 LIMIT 34 7.2 TEST PROCEDURE 34 Report No.: LGT24G164RF01 Page 4 of 78 7.3 TEST SETUP 34 7.4 EUT OPERATION CONDITIONS 34 7.5 TEST RESULTS 34 8. BANDWIDTH TEST 35 8.1 LIMIT 35 8.2 TEST PROCEDURE 35 8.3 TEST SETUP 35 8.4 EUT OPERATION CONDITIONS 35 8.5 TEST RESULTS 35 9. OUTPUT POWER TEST 36 9.1 LIMIT 36 9.2 TEST PROCEDURE 36 9.3 TEST SETUP 36 9.4 EUT OPERATION CONDITIONS 36 9.5 TEST RESULTS 36 10. ANTENNA REQUIREMENT 37 10.1 STANDARD REQUIREMENT 37 10.2 EUT ANTENNA 37 APPENDIX I - TEST RESULTS 38 DUTY CYCLE 38 MAXIMUM PEAK CONDUCTED OUTPUT POWER 42 -20DB BANDWIDTH 43 OCCUPIED CHANNEL BANDWIDTH 47 CARRIER FREQUENCIES SEPARATION 51 BAND EDGE 55 BAND EDGE(HOPPING) 60 CONDUCTED RF SPURIOUS EMISSION 65 NUMBER OF HOPPING CHANNEL 72 DWELL TIME 74 APPENDIX II - MEASUREMENT PHOTOS 77 APPENDIX III - PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS 78 Report No.: LGT24G164RF01 Page 5 of 78 Revision History Rev. Issue Date Revisions 00 Aug. 15, 2024 Initial Issue Report No.: LGT24G164RF01 Page 6 of 78 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Report No.: LGT24G164RF01 Page 7 of 78 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Park, No.177, Renmin West Road, Jinsha, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 9K-30MHz ±2.84dB 4 All emissions, radiated 30M-1GHz ±4.39dB 5 All emissions, radiated 1G-6GHz ±5.10dB 6 All emissions, radiated>6G ±5.48dB 7 Conducted Emission (9KHz-150KHz) ±2.79dB 8 Conducted Emission (150KHz-30MHz) ±2.80dB Note: The measurement uncertainty is not included in the test result. Report No.: LGT24G164RF01 Page 8 of 78 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: wireless earbuds Trademark: DazDalee,XWIT,Daomim,CHIFENCHY,FORTECLEAR,DBSOARS Model Name: G305 Series Model: G305-AI, G305-A, G305-B, G305-C, G305-D, G305-E, G305-F Model Difference: All models are identical except the Bluetooth name and model number, …

Text truncated - open the document above for the full version.

Test Setup Photos

Page 1 of 2 Report No.: LGT24G164 Appendix - Test Setup photos Set-up for Radiated Spurious Emission, Below 1GHz Set-up for Radiated Spurious Emission, Above 1GHz Page 2 of 2 Report No.: LGT24G164 Set-up for Conducted Emission

Contact Information

Applicant

Luo Peng(Manager)
[email protected]18802603740Fax: +86-0769-89195619

Technical Contact

Dongguan Jin wen hua digital technology Co., LTD.
[email protected]

China

Test Firm

Shenzhen LGT Test Service Co., Ltd.Wen Wen
[email protected]0755-89668180

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.40 GHz - 2.48 GHz3.29 mW
Confidentiality
Long Term
Grant Notes
Power listed is the maximum conducted output power.

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