2BPXY-HDT21SMART WATCH

                 

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 2BPXY-HDT21 HDT21 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. iv. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. US-American Point of Contact Applicant/Approval Holder Signature Date: 2026-1-12 Signature Date: 2026-1-12 Company Name: GLOCERTS TECHNOLOGY INC Shenzhen Hongdetong Technology Co., Ltd FRN: 0036339737 0037114527 Contact Name: Huiying Fan Chubin Lv Address: 19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507 707 Tongsheng Technology Building, Longhua New District, Shenzhen, China Phone: (626) 588-8039 13760447068 Email: [email protected] [email protected]

Page 1 of 3 FCC ID: 2BPXY-HDT21 External Photo Page 2 of 3 FCC ID: 2BPXY-HDT21 Page 3 of 3 FCC ID: 2BPXY-HDT21

Label 1. The label is silk-screen on the sample FCC ID: 2BPXY-HDT21

Page 1 of 2 FCC ID: 2BPXY-HDT21 Internal photos wire antenna Page 2 of 2 FCC ID: 2BPXY-HDT21

Page 1 of 7 Report No.: AiTSZ-251226076FW2 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. RF Exposure evaluation Product Name : SMART WATCH Brand Name : N/A Model : HDT21 Series Model : N/A FCC ID : 2BPXY-HDT21 Applicant : Shenzhen Hongdetong Technology Co.,Ltd Address : 707 Tongsheng Technology Building, Longhua New District, Shenzhen, China Manufacturer : Shenzhen Hongdetong Technology Co.,Ltd Address : 707 Tongsheng Technology Building, Longhua New District, Shenzhen, China Standard(s) : 47CFR §1.1310, 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt : Dec. 26, 2025 Date of Test : Dec. 26, 2025~Jan. 05, 2026 Issued Date : Jan. 05, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 7 Report No.: AiTSZ-251226076FW2 Report Revise Record Report Version Issued Date Notes M0 Jan. 05, 2026 Initial Release Page 3 of 7 Report No.: AiTSZ-251226076FW2 Contents 1 GENERAL INFORMATION .......................................................................................................................................... 4 1.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 4 1.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 METHOD OF MEASUREMENT ................................................................................................................................... 6 2.1 APPLICABLE STANDARD.................................................................................................................................................. 6 2.2 EVALUATION METHOD AND LIMIT .................................................................................................................................... 6 2.3 MANUFACTURING TOLERANCE ........................................................................................................................................ 7 2.4 EVALUATION RESULT ..................................................................................................................................................... 7 2.5 CONCLUSION ............................................................................................................................................................... 7 Page 4 of 7 Report No.: AiTSZ-251226076FW2 1 GENERAL INFORMATION 1.1 Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature: 25°C Relative Humidity: 55 % Air Pressure: 101 kPa 1.2 General Description of EUT Product Name: SMART WATCH Model/Type reference: HDT21 Serial Model: N/A Rating: DC 3.7V from battery or DC 5V from external circuit Hardware Version: N/A Software Version: N/A Sample(s) Status: AiTSZ-251226076-1(Normal sample) AiTSZ-251226076-2(Engineer sample) Bluetooth LE: Supported type: Bluetooth LE 1M/2M Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: wire antenna Antenna gain: -7.13dBi Remark: The above DUT's information was declared by manufacturer. For more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. Page 5 of 7 Report No.: AiTSZ-251226076FW2 1.3 Test Facility Test Laboratory: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China The test facility is recognized, certified or accredited by the following organizations: FCC-Registration No.: 251906 Designation Number: CN1376 Guangdong Asia Hongke Test Technology Limited has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. IC —Registration No.: 31737 CAB identifier: CN0165 The 3m Semi-anechoic chamber of Guangdong Asia Hongke Test Technology Limited has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 31737 A2LA-Lab Cert. No.: 7133.01 Guangdong Asia Hongke Test Technology Limited has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2017 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing. 1.4 Measurement uncertainty Th…

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Page 1 of 32 Report No.: AiTSZ-251226076FW1 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Product Name : SMART WATCH Brand Name : N/A Model : HDT21 Series Model : N/A FCC ID : 2BPXY-HDT21 Applicant : Shenzhen Hongdetong Technology Co.,Ltd Address : 707 Tongsheng Technology Building, Longhua New District, Shenzhen, China Manufacturer : Shenzhen Hongdetong Technology Co.,Ltd Address : 707 Tongsheng Technology Building, Longhua New District, Shenzhen, China Standard(s) : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of Receipt : Dec. 26, 2025 Date of Test : Dec. 26, 2025~Jan. 05, 2026 Issued Date : Jan. 05, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 32 Report No.: AiTSZ-251226076FW1 Report Revise Record Report Version Issued Date Notes M0 Jan. 05, 2026 Initial Release Page 3 of 32 Report No.: AiTSZ-251226076FW1 Contents 1 TEST SUMMARY ....................................................................................................................................................... 4 1.1 TEST STANDARDS ......................................................................................................................................................... 4 1.2 TEST SUMMARY ........................................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 GENERAL INFORMATION .......................................................................................................................................... 6 2.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 6 2.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3 DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 7 2.4 SPECIAL ACCESSORIES ................................................................................................................................................... 8 2.5 EQUIPMENT LIST FOR THE TEST ....................................................................................................................................... 8 3 TEST CONDITIONS AND RESULTS ............................................................................................................................ 10 3.1 CONDUCTED EMISSIONS TEST ....................................................................................................................................... 10 3.2 RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 13 3.3 MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................................... 20 3.4 POWER SPECTRAL DENSITY .......................................................................................................................................... 21 3.5 6DB BANDWIDTH ....................................................................................................................................................... 22 3.6 OUT-OF-BAND EMISSIONS ........................................................................................................................................... 23 3.7 ANTENNA REQUIREMENT ............................................................................................................................................. 25 4 TEST SETUP PHOTOGRAPHS OF EUT ....................................................................................................................... 26 5 PHOTOS OF EUT ..................................................................................................................................................... 28 Page 4 of 32 Report No.: AiTSZ-251226076FW1 1 TEST SUMMARY 1.1 Test Standards The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz ANSI C63.10: 2020: American National Standard for Testing Unlicensed Wireless Devices KDB558074 D01 15.247 Meas Guidance v05r02: Guidance for Compliance Measurements on Digital Transmission System, Frequency Hopping Spreda Spectrum System, and Hybrid System Devices Operating U…

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福贝特国际〈香港〉有限公司 。。 FBETTER INTERNATIONAL (H.K) CO., LIMITED RM 1516-1517,15/F,, GRANDTECH CENTRE,, NO.8 ON PING STREET, SHEK MUN,, SAN TIN, HONG KONG Notesforantennainstallation Length Notesforantennainstallation Electronicwireinstallationrecommendations: 1:Theelectronlinelengthisinthe24.60mm. 2:Theelectronicwireisinstalledonthesideofthehorn. 3:Theendoftheelectronicwireisfixedwithadhesive papertomaketheconsistencyofthebatchproductiongood. Antennaparameters Freq2.4GHz2.5GHzspce VSWR1.481.79 ＜ 2 LogMag-14.15-10.93 ＜ -10 Antennaparameters Frequency/MhzEfficiency / %Gain/dBi 24004.2-7.13 24104.21-7.3 24204.33-7.43 24304.38-7.69 24404.4-7.9 24504.66-7.84 24604.8-7.75 24705.01-7.56 24804.7-7.7 24904.65-7.62 25004.29-7.99 Radiation Pattern Themeasureddistanceontheroofofthebuilding Project T11-N Testdate 2024.5.9 Software release Testlocation Themeasureddistanceontheroofofthe building Model Measuringdistance Metalwatchband Non-metallic watchband IOS Positiveeffective distance (≥15m) 1817 Backeffectivedistance (≥10m) 106 Android Positiveeffective distance (≥15m) 1818 Backeffectivedistance (≥10m) 99 谢谢，合作愉快！ Thank You! The Concepts National Income And National Product Have Roughly The Same Value And Can Be Used Interchangeably If Our Interest Is In Their

Page 1 of 29 Report No.: AiTSZ-251226076CW1 Appendix Test Data for BLE Page 2 of 29 Report No.: AiTSZ-251226076CW1 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 1M SISO 2402 0.171 0.625 27.36 5.63 0.03 2440 0.171 0.625 27.36 5.63 0.00 2480 0.170 0.625 27.20 5.65 0.03 2M SISO 2402 0.111 0.625 17.76 7.51 0.00 2440 0.135 0.625 21.60 6.66 0.03 2480 0.135 0.625 21.60 6.66 0.03 Page 3 of 29 Report No.: AiTSZ-251226076CW1 1.2 Test Graph 1.2.1 Ant1 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 4 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 5 of 29 Report No.: AiTSZ-251226076CW1 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 6 of 29 Report No.: AiTSZ-251226076CW1 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 1.002 / Pass 2440 1 1.001 / Pass 2480 1 1.003 / Pass 2M SISO 2402 1 2.049 / Pass 2440 1 2.048 / Pass 2480 1 2.049 / Pass 2.1.2 6dB BW Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 0.504 >=0.5 Pass 2440 1 0.505 >=0.5 Pass 2480 1 0.507 >=0.5 Pass 2M SISO 2402 1 0.854 >=0.5 Pass 2440 1 0.854 >=0.5 Pass 2480 1 0.858 >=0.5 Pass Page 7 of 29 Report No.: AiTSZ-251226076CW1 2.2 Test Graph 2.2.1 OBW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 8 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 9 of 29 Report No.: AiTSZ-251226076CW1 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 10 of 29 Report No.: AiTSZ-251226076CW1 2.2.2 6dB BW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 11 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 12 of 29 Report No.: AiTSZ-251226076CW1 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 13 of 29 Report No.: AiTSZ-251226076CW1 3. Maximum Conducted Output Power 3.1 Test Result 3.1.1 Power Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 1M SISO 2402 4.78 <=30 Pass 2440 4.73 <=30 Pass 2480 4.51 <=30 Pass 2M SISO 2402 4.84 <=30 Pass 2440 4.81 <=30 Pass 2480 4.59 <=30 Pass Note1: Antenna Gain: Ant1: -7.13dBi; Page 14 of 29 Report No.: AiTSZ-251226076CW1 3.2 Test Graph 3.2.1 Power 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 15 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 16 of 29 Report No.: AiTSZ-251226076CW1 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 17 of 29 Report No.: AiTSZ-251226076CW1 4. Maximum Power Spectral Density 4.1 Test Result 4.1.1 PSD Mode TX Type Frequency (MHz) Maximum PSD (dBm) Verdict ANT1 Limit 1M SISO 2402 4.68 <=8 Pass 2440 4.63 <=8 Pass 2480 4.41 <=8 Pass 2M SISO 2402 4.64 <=8 Pass 2440 4.61 <=8 Pass 2480 4.38 <=8 Pass Note1: Antenna Gain: Ant1: -7.13dBi; Page 18 of 29 Report No.: AiTSZ-251226076CW1 4.2 Test Graph 4.2.1 PSD 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 19 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 20 of 29 Report No.: AiTSZ-251226076CW1 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 21 of 29 Report No.: AiTSZ-251226076CW1 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Test Result 5.1.1 Ref Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 1M SISO 2402 1 4.67 2440 1 4.63 2480 1 4.41 2M SISO 2402 1 4.64 2440 1 4.61 2480 1 4.38 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 5.1.2 CSE Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 1M SISO 2402 1 4.67 -15.33 Pass 2440 1 4.67 -15.33 Pass 2480 1 4.67 -15.33 Pass 2M SISO 2402 1 4.64 -15.36 Pass 2440 1 4.64 -15.36 Pass 2480 1 4.64 -15.36 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 22 of 29 Report No.: AiTSZ-251226076CW1 5.2 Test Graph 5.2.1 Ref 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 23 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 24 of 29 Report No.: AiTSZ-251226076CW1 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 25 of 29 Report No.: AiTSZ-251226076CW1 5.2.2 CSE 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 26 of 29 Report No.: AiTSZ-251226076CW1 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 27 of 29 Report No.: AiTSZ-251226076CW1 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 28 of 29 Report No.: AiTSZ-251226076CW1 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV Page 29 of 29 Report No.: AiTSZ-251226076CW1 2M_HCH_2480MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV ********************** End of Report **********************

Page 1 of 2 FCC ID: 2BPXY-HDT21 Page 2 of 2 FCC ID: 2BPXY-HDT21