2AFSG-T801wireless earbuds

Dongguan Jin wen hua digital technology Co.,LTD. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024-07-09 FCC ID: 2AFSG-T801 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 Date: 2024-07-10 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-T801) 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

深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 1 OF 11 2.0X1.2X0.6 (mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012- A20) Engineering Specification 1. Product Number YF 2012 F5 P 2G45 A20 1 2 3 4 5 6 Address: 412, Building 7, Phase II, Nanshan Yungu Pioneer Park, No.2 Pingshan 1st Road, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen City 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 2 OF 11 2. Features *Stable and reliable in performances *Low temperature coefficient of frequency *Low profile, compact size *RoHS compliance *SMT processes compatible 3. Applications *Bluetooth earphone systems *Hand-held devices when WiFi /Bluetooth functions are needed, e.g., Smart phone. *IEEE802.11 b/g/n *ZigBee *Wireless PCMCIA cards or USB dongle 4. Description Yingfeng chip antenna series are specially designed for WiFi/Bluetooth applications. Based on yingfeng proprietary design and processes, this chip antenna has excellent stability and sensitivity to consistently provide high signal reception efficiency. 5. Electrical Specifications (80 x 40 mm 2 ground plane) 5-1. Electrical Table Characteristics Specifications Unit Outline Dimensions 2.0x1.2x0.6 mm Working Frequency 2400~2500 MHz VSWR 2 Max. Impedance 50  Polarization Linear Polarization Gain Peak 2.5 (typical) dBi Efficiency 75 (typical) % 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 3 OF 11 5-2. Return Loss & VSWR Return Loss (S 11 ) VSWR(S 11 ) 6. Antenna Dimensions & Test Board (unit: mm) a. Antenna Dimensions 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 4 OF 11 b. Test Board with Antenna Unit: mm 7. Radiation Pattern (80 x 40 mm 2 ground plane) 7-1. 3D Gain Pattern @ 2442 MHz Z X Y 80 40 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 5 OF 11 7-2. 3D Efficiency Table Frequency( MHz) 2400 2410 2420 2430 2442 2450 2460 2470 2480 2490 2500 Efficiency (dB) -1.4 -1.0 -0.9 -0.7 -0.7 -0.8 -0.9 -1.1 -1.2 -1.3 -1.4 Efficiency (%) 72.8 73.7 74.3 74.4 75.5 75.0 74.0 73.6 73.1 72.6 71.5 Gain (dBi) 2.1 2.2 2.3 2.4 2.5 2.5 2.4 1.8 1.7 1.6 1.4 7-3. 3D Efficiency vs. Frequency Y X Z Y X X Y Z 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 6 OF 11 8. Layout Guide a. Solder Land Pattern: Land pattern for soldering (gray marking areas) is as shown below. Depending on Customer’s requirement, matching circuit as shown below is also recommended. Efficiency vs. Frequency 50 60 70 80 90 100 24002410242024302442245024602470248024902500 Frequency(MHz) Efficiency(%) 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 7 OF 11 Top View Bottom View Unit： mm 9. Frequency tuning a. Chip antenna tuning scenario： Feed 4. Fine tuning elemet 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 8 OF 11 b. Matching circuit：(Center frequency is about 2442 MHz @ 80 x 40 mm 2 ground plane) System Matching Circuit Component Location Description Vendor Toleranc e 1 1.2 pF* Murata (0402) ±0.1 pF 2 10PF* Murata(0402) ±0.5 PF 3 N/A* - - Fine tuning element 4 1.5 pF* Murata (0402) ±0.1 pF *Typical reference values which may need to be changed when circuit boards or part vendors are different. c. Fine tuning element vs. Center frequency Matching circuit 1 2 3 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 9 OF 11 10. Soldering Conditions a. Typical Soldering Profile for Lead-free Process Time 60-180s 60-150s 20- Pre- 150-200° 217°C 260° Temperature (°C) 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF2012-A20) Engineering Specification DOCUMENT YF2012F5P2G45-A20 REV. NO. C PAGE 10 OF 11 11. Packing (1) Quantity/Reel: 4000 pcs/Reel (2) Plastic tape: 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：2.0 x 1.2 x 0.6(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF201…

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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：2024-07-09 Product Model Number: T801 ; T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN FCC ID：2AFSG-T801 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.

Dongguan Jin wen hua digital technology Co.,LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: July 10, 2024 Subject; Request for Confidentiality FCC ID: 2AFSG-T801 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

Dongguan Jin wen hua digital technology Co.,LTD. Declaration Letter of Model Difference Date: 2024-07-09 Tested Model Number: T801 Adding Model Number(s): T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN All Adding Model Number(s) is/are same electrically identical as Tested Model Number except the Bluetooth name and model number, therefore the test performed on the model T801. 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:

Page 1 of 8 Report No.: LGT24F180 Appendix - External Photographs of EUT Constructional Details Model: T801 Photo 1 Photo 2 Page 2 of 8 Report No.: LGT24F180 Photo 3 Photo 4 Page 3 of 8 Report No.: LGT24F180 Photo 5 Photo 6 Page 4 of 8 Report No.: LGT24F180 Photo 7 Photo 8 Page 5 of 8 Report No.: LGT24F180 Photo 9 Photo 10 Page 6 of 8 Report No.: LGT24F180 Photo 11 Photo 12 Page 7 of 8 Report No.: LGT24F180 Photo 13 Photo 14 Page 8 of 8 Report No.: LGT24F180 Photo 15

Label Size: 14.425 mm*4.655 mm FCC ID: 2AFSG-T801

Page 1 of 7 Report No.: LGT24F180 Appendix - Internal Photographs of EUT Constructional Details Model: T801 Photo 1 Photo 2 ANT Page 2 of 7 Report No.: LGT24F180 Photo 3 Photo 4 Page 3 of 7 Report No.: LGT24F180 Photo 5 Photo 6 Page 4 of 7 Report No.: LGT24F180 Photo 7 Photo 8 Page 5 of 7 Report No.: LGT24F180 Photo 9 Photo 10 Page 6 of 7 Report No.: LGT24F180 Photo 11 Photo 12 ANT Page 7 of 7 Report No.: LGT24F180 Photo 13 Photo 14

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: T801, T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN FCC ID: 2AFSG-T801 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: LGT24F180HA01 Sample Received Date: Jul. 01, 2024 Date of Test: Jul. 01, 2024 – Jul. 09, 2024 Date of Issue: Jul. 09, 2024 Report No.: LGT24F180HA01 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: XWIT,Daomim,CHIFENCHY,DazDalee,FORTECLEAR,DBSOARS Model Name: T801, T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC 47 CFR §2.1091 KDB 447498 D01 General RF Exposure Guidance v06 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT24F180HA01 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 §2.1091 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 EUT OPERATION CONDITION 7 2.4 CLASSIFICATION 7 2.5 TEST RESULT 8 APPENDIX I - PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS 9 Report No.: LGT24F180HA01 Page 4 of 9 Revision History Rev. Issue Date Revisions 00 Jul. 09, 2024 Initial Issue Report No.: LGT24F180HA01 Page 5 of 9 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name: wireless earbuds Trademark: XWIT,Daomim,CHIFENCHY,DazDalee,FORTECLEAR,DBSOARS Model Name: T801 Series Model: T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN Model Difference: All models are identical except the Bluetooth name and model number, therefore the test performed on the model T801. Frequency Bands: Bluetooth 2402-2480MHz Rating: Input: DC 5V 500mA Battery: Model: 702040 Capacity: 500mAh Rated Voltage: 3.7V Model: 450911 Capacity: 30mAh Rated Voltage: 3.7V Hardware Version: 1.0 Software Version: 1.3 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.: LGT24F180HA01 Page 6 of 9 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 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 According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of the human exposure to radio-frequency (RF) radiation as specified in 1.1307 (b) Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm²) Limits for Occupational / controlled Exposures 0.3-3.0 614 1.63 *(100) 3.0-30 1842/f 4.89/f *(900/f 2 ) 30-300 61.4 0.163 1.0 300 - 1500 -- -- F/300 1500 – 100000 -- -- 5.0 Limits for General population / Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 1.34-30 824/f 2.19/f *(180/f 2 ) 30-300 27.5 0.073 0.2 300 - 1500 -- -- F/1500 1500 – 100000 -- -- 1.0 F= Frequency in MHz * = Plane-wave equivalent power density. Friss Formula Friss Transmission Formula: Pd = (Pout * G) / (4*pi*r²) Where Pd = power density in mW/cm² Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = Distance between observation point and the center of radiator in cm If we know the maximum gain of the antenna and the total output power to the antenna, through calculation, we will know MPE value at distance 20cm. Report No.: LGT24F180HA01 Page 7 of 9 2.3 EUT OPERATION CONDITION EUT was enabled to transmit and receive at lowest, middle and highest channels. 2.4 CLASSIFICATION The antenna of this product, under normal use condition, is at least 20cm away from the body of the user. Warning statement to the user for keeping at least 20cm or more separation distance from the antenna should be included in the User manual. So, this device is classified as Mobile device. Report No.: LGT24F180HA01 Pag…

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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: T801, T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN FCC ID: 2AFSG-T801 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: LGT24F180HA01 Sample Received Date: Jul. 01, 2024 Date of Test: Jul. 01, 2024 – Jul. 09, 2024 Date of Issue: Jul. 09, 2024 Report No.: LGT24F180HA01 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: XWIT,Daomim,CHIFENCHY,DazDalee,FORTECLEAR,DBSOARS Model Name: T801, T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC 47 CFR §2.1091 KDB 447498 D01 General RF Exposure Guidance v06 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT24F180HA01 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 §2.1091 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 EUT OPERATION CONDITION 7 2.4 CLASSIFICATION 7 2.5 TEST RESULT 8 APPENDIX I - PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS 9 Report No.: LGT24F180HA01 Page 4 of 9 Revision History Rev. Issue Date Revisions 00 Jul. 09, 2024 Initial Issue Report No.: LGT24F180HA01 Page 5 of 9 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name: wireless earbuds Trademark: XWIT,Daomim,CHIFENCHY,DazDalee,FORTECLEAR,DBSOARS Model Name: T801 Series Model: T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN Model Difference: All models are identical except the Bluetooth name and model number, therefore the test performed on the model T801. Frequency Bands: Bluetooth 2402-2480MHz Rating: Input: DC 5V 500mA Battery: Model: 702040 Capacity: 500mAh Rated Voltage: 3.7V Model: 450911 Capacity: 30mAh Rated Voltage: 3.7V Hardware Version: 1.0 Software Version: 1.3 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.: LGT24F180HA01 Page 6 of 9 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 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 According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of the human exposure to radio-frequency (RF) radiation as specified in 1.1307 (b) Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm²) Limits for Occupational / controlled Exposures 0.3-3.0 614 1.63 *(100) 3.0-30 1842/f 4.89/f *(900/f 2 ) 30-300 61.4 0.163 1.0 300 - 1500 -- -- F/300 1500 – 100000 -- -- 5.0 Limits for General population / Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 1.34-30 824/f 2.19/f *(180/f 2 ) 30-300 27.5 0.073 0.2 300 - 1500 -- -- F/1500 1500 – 100000 -- -- 1.0 F= Frequency in MHz * = Plane-wave equivalent power density. Friss Formula Friss Transmission Formula: Pd = (Pout * G) / (4*pi*r²) Where Pd = power density in mW/cm² Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = Distance between observation point and the center of radiator in cm If we know the maximum gain of the antenna and the total output power to the antenna, through calculation, we will know MPE value at distance 20cm. Report No.: LGT24F180HA01 Page 7 of 9 2.3 EUT OPERATION CONDITION EUT was enabled to transmit and receive at lowest, middle and highest channels. 2.4 CLASSIFICATION The antenna of this product, under normal use condition, is at least 20cm away from the body of the user. Warning statement to the user for keeping at least 20cm or more separation distance from the antenna should be included in the User manual. So, this device is classified as Mobile device. Report No.: LGT24F180HA01 Pag…

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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: T801, T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN FCC ID: 2AFSG-T801 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: LGT24F180RF01 Sample Received Date: Jul. 01, 2024 Date of Test: Jul. 01, 2024 – Jul. 09, 2024 Date of Issue: Jul. 09, 2024 Report No.: LGT24F180RF01 Page 2 of 70 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: XWIT,Daomim,CHIFENCHY,DazDalee,FORTECLEAR,DBSOARS Model Name: T801, T801A, T801B, T801C, T801D, T801E, T801F, T801G, T801H, T801J, T801K, T801L, T801M, T801N, T801P, T801Q, T801R, T801S, T801T, T801V, T801W, T801X, T801Y, T801Z, T801EN 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.: LGT24F180RF01 Page 3 of 70 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.: LGT24F180RF01 Page 4 of 70 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 41 -20DB BANDWIDTH 42 OCCUPIED CHANNEL BANDWIDTH 45 CARRIER FREQUENCIES SEPARATION 48 BAND EDGE 51 BAND EDGE(HOPPING) 55 CONDUCTED RF SPURIOUS EMISSION 59 NUMBER OF HOPPING CHANNEL 64 DWELL TIME 66 APPENDIX II - MEASUREMENT PHOTOS 69 APPENDIX III - PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS 70 Report No.: LGT24F180RF01 Page 5 of 70 Revision History Rev. Issue Date Revisions 00 Jul. 09, 2024 Initial Issue Report No.: LGT24F180RF01 Page 6 of 70 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.: LGT24F180RF01 Page 7 of 70 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Zhenxiong Industrial Pa…

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