2BEQB-GD28Bluetooth Headset

1.蓝牙名 Earclip 2.单击播放暂停 Click Play Pause 3.双击回拨电话 Double-click the call back 4.来电时候 单击接听挂断 双击拒接 When you call, click answer hang up double click reject 5.长按2S开机 长按5S关机 Long press 2S boot Long press 5S to turn off 6.连接手机后长按2S咚一声唤醒语音助手 After connecting to the mobile phone, long press the 2S dong to wake up the voice assistant 7.充电功能 Charging function 充电电流30MA Charging current is 30MA 充满截止电流7MA Full cut-off current of 7MA 3.3V低电报警 45S报一次 直到关机 3.3V low power alarm 45S newspaper once Until the shutdown 3.1V低电关机 3.1V low power shutdown FCC ID: 2BEQB-GD28 FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions (1)this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation

Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BEQB‐GD28 GD28、GD68、G D06、GD08、GD09、GD10、 GD11、GD12、GD13、GD15、GD16、GD17、 GD18、GD19、GD20 We hereby acknowledge as follows: i. both signees confirm that the point of contact accepts responsibility to act as a US‐ American Representative on behalf of the applicant ii. the point of contact provides the physical U.S. address and email as listed below iii. both parties maintain the requirements of this agreement 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. US‐American Point of Contact Applicant/Approval Holder Company Name: GSS SERVICE INC Shenzhen Dewanghong Technology Co. LTD FRN: 0033500653 0034796631 Contact Name: Michoux Logan Liang Ying Address: 6547 N Academy Blvd #2266 Colorado Springs Co 80918 USA 6 / F, Building B5, Anle Industrial Zone, Hangcheng Avenue, Gushu, Xixiang, Baoan District, Shenzhen Phone: 001‐949‐2990192 or 001‐515‐ 7158284 13410269583 Email: [email protected] [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)‐(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BEQB‐GD28 GD28、GD68、G D06、GD08、GD09、GD10、 GD11、GD12、GD13、GD15、GD16、GD17、 GD18、GD19、GD20 We, applicant Company Name: Shenzhen Dewanghong Technology Co. LTD Address: 6 / F, Building B5, Anle Industrial Zone, Hangcheng Avenue, Gushu, Xixiang, Baoan District, Shenzhen Phone: 13410269583 certify 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. We certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Feb.25,2024 Signature Date Printed Name of Signee: Liang Ying Company: Shenzhen Dewanghong Technology Co. LTD Address: 6 / F, Building B5, Anle Industrial Zone, Hangcheng Avenue, Gushu, Xixiang, Baoan District, Shenzhen Phone: 13410269583 Email: [email protected]

ShenZhen BanJuan Rising-sun Electronic Co.,Ltd 14c, Building 6, Huaqiao Xinyuan, Niulanqian, Longhua New District, Shenzhen City, Guangdong Province Declaration Letter Date: Feb.25,2024 To : Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: For our business issue and marketing requirement, we would like to list different model number on the FCC certificates and reports, as following: FCC ID: 2BEQB-GD28 Model Number: GD28、GD68、G D06、GD08、GD09、GD10、GD11、GD12、GD13、GD15、 GD16、GD17、GD18、GD19、GD20 Model Difference: The difference between models is for different market sale, the other (hardware and software) was the same as before. Sincerely, Name / Title Liang Ying/Manager Company Name Shenzhen Dewanghong Technology Co. LTD Company Address 6 / F, Building B5, Anle Industrial Zone, Hangcheng Avenue, Gushu, Xixiang, Baoan District, Shenzhen Tel: 13410269583 Fax: Email: [email protected]

External Photographs FCC ID: 2BEQB-GD28

Label Sample for FCC ID: 2BEQB-GD28 FCC ID: 2BEQB-GD28 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Size for the label: 3mm X 6mm Product Name : Bluetooth headset Model : GD28 FCC ID :2BEQB-GD28

Internal photographs FCC ID: 2BEQB-GD28 Antenna

Radio frequency radiation exposure evaluation: portable devices 1.1 Radio Frequency Exposure Compliance 1.1.1 Electromagnetic Fields RESULT: Pass Test Specification Test item : Bluetooth Headset Identification / Type No. : GD28 FCC ID : 2BEQB-GD28 Test standard : CFR47 FCC Part 2: Section 2.1093 FCC KDB Publication 447498 v06 Measurement Record: EIRP[dBm] = maximum peak output + antenna Gain = -0.31dBm +1.8dBi =1.49dBm Since maximum peak output power of the transmitter is 1.49 dBm ≈1.41mW < 10mW. Hence the EUT is excluded from SAR evaluation according to FCC KDB Publication 447498 D01 General RF Exposure Guidance v06.

Shenzhen Dewanghong Technology Co. LTD 6 / F, Building B5, Anle Industrial Zone, Hangcheng Avenue, Gushu, Xixiang, Baoan District, Shenzhen Antenna specification Quick Reference Date Models No.: GD28 Frequenc Range 2400 ~ 2500MHz Efficiency (dB) 6 0.2 % Gain (dBi) 1.8 (Peak Gain XZ-plane) Input Impendence(ohm) 50 Polarization Type Vertical & Horizontal V.S.W.R < 1.4 Manufacturer Shenzhen Dewanghong Technology Co. LTD Address 6 / F, Building B5, Anle Industrial Zone, Hangcheng Avenue, Gushu, Xixiang, Baoan District, Shenzhen All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 1.1 -0.4 1.8 -3.5 1.0 -2.9 6 0.2 % Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

BSL Testing Co.,LTD. Report No.: BSL240161089603RF Report No.: BSL230961089601RF Page 1 of 31 FCC Part 15.247 FCC Part 15C Measurement and Test Report For Shenzhen Dewanghong Technology Co. LTD FCC ID: 2BEQB-GD28 FCC Rule(s): FCC Part 15.247 Product Description: Bluetooth Headset Tested Model: GD28 Report No.: BSL240161089603RF Tested Date: Jan.01~23, 2024 Issued Date: Jan. 23, 2024 Tested By: Lris Yao / Engineer Reviewed By: Levi Xiao / EMC Manager Approved & Authorized By: Salon Ouyang / PSQ Manager Prepared By: BSL Testing Co.,LTD. 1/F, Building B, Xinshidai GR Park, Shiyan Street, Bao'an District, Shenzhen, ShiyanStreet, Bao'an District, Shenzhen,Guangdong,518052,People’s Republic of China Tel: 400-882-9628 Fax: 86- 755-26508703 BSL Testing Co.,LTD. Report No.: BSL240161089603RF Report No.: BSL230961089601RF Page 2 of 31 FCC Part 15.247 TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................... 3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .................................................................................. 3 1.2 TEST STANDARDS ...................................................................................................................................................... 4 1.3 TEST METHODOLOGY ................................................................................................................................................ 4 1.4 TEST FACILITY .......................................................................................................................................................... 4 1.5 EUT SETUP AND TEST MODE .................................................................................................................................... 5 1.6 MEASUREMENT UNCERTAINTY ................................................................................................................................. 5 1.7 TEST EQUIPMENT LIST AND DETAILS ........................................................................................................................ 6 2. SUMMARY OF TEST RESULTS .............................................................................................................................. 7 3. RF EXPOSURE ............................................................................................................................................................ 8 3.1 STANDARD APPLICABLE ............................................................................................................................................ 8 3.2 TEST RESULT............................................................................................................................................................. 8 4. ANTENNA REQUIREMENT ..................................................................................................................................... 9 4.1 STANDARD APPLICABLE ............................................................................................................................................ 9 4.2 EVALUATION INFORMATION ..................................................................................................................................... 9 5. POWER SPECTRAL DENSITY .............................................................................................................................. 10 5.1 STANDARD APPLICABLE .......................................................................................................................................... 10 5.2 TEST PROCEDURE .................................................................................................................................................... 10 5.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................... 10 5.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................... 10 6. 6DB BANDWIDTH .................................................................................................................................................... 13 6.1 STANDARD APPLICABLE .......................................................................................................................................... 13 6.2 TEST PROCEDURE .................................................................................................................................................... 13 6.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................... 13 6.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................... 13 7. RF OUTPUT POWER ............................................................................................................................................... 16 7.1 STANDARD APPLICABLE .......................................................................................................................................... 16 7.2 TEST PROCEDURE .................................................................................................................................................... 16 7.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................... 16 7.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................... 16 8. FIELD STRENGTH OF SPURIOUS EMISSIONS ................................................................................................ 17 8.1 STANDARD APPLICABLE ......................................................…

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Test Setup Photos FCC ID: 2BEQB-GD28